The bosses are basically identically to players except they have massive amount of HP.
That being said, the bosses have different "true levels"
Here are the list of faction bosses:
Alliance:
Highlord Bolvar, aka I didn't see a giant dragon standing five feet away from me, Fordragon----at stormwind keep
Archbishop, aka I have a basement inviting any horde warlock to summon raid me, Benedictus------at stormwind cathedal
King Magni, aka I need you to kill my son in law, Bronzebeard-----at ironforge highseat
High Tinker, aka no nobody know I exist, Mekkar------at ironforge Tinkertown
Archdruid Faugon, need anger management, Staghelm------at top of Cenarion Conclave at darnassus
Priestess Tyrande, aka husband missing for ten thousand years, Whisperwind---at temple of moon at Darnasus
Lady Jaina, aka I love green (Thrall) more than blond (Arthas), Proudmoore----at top of the Theramore central keep
Horde:
Lady Sylvanas, aka I am the queen of Zerg..er forsaken, Windrunner----at Undercity Royal Chamber
Majordomo, aka I can fly before the beer gut, Varimathas----at Undercity Royal Chamber
Warchief, aka I didn't ninja this platemail, Thrall---at Orgrimmar valley of wisdom
(Don't know his title) Vol`jin, aka I like to stand and chill while alliance raiding Thrall --at orgrimmar valley of wisdom
Highchieftain Cairne, aka I die three times a day at Warcraft III, Bloodhoof---highchieftian's tent at Thunderbuff
That being said, i think the easiest boss to take down will in fact be Archbishop Benedictus. Since there is a basement right beside him which is perfect for horde's summon sneak attack. The archdruid, Tyrande and Jaina are all standing at pretty cramped places, so they are a bit harder.
Sylvanas and varimathas are standing together. Thrall and Vol'jin is standing together. But no raid is really stupid enough to take two bosses on at the same time. They will simply pull one out.
Again, all bosses are acting as players in term of damage, which means they can outlevel you by 10000 level, but you will still be able to hit them.
According to the World of Warcraft Strategy guide, all the bosses are in fact level 63 with exception of Bolvar, Varimathas and Tyrande. (Don't flame me if I remembered wrong.)
varimathas, level 100---probably why no one has tried to mess with him yet. As far as we know, he could have kicked Ragnaros' ass by himself if he tried.
Tyrande Wisperwind, level 75----sigh...poor darnassus, with max population of 5 people at peak hour. Though I did hear quite a few raid wipe from her by the starfall.
Highland Bolvar Fordragon, level 90---if you are alliance come to Stormwind three times a day and watch he kill 7 level 62 Onixya's elite guards by himself and have 80% health left. It has been confirmed by my own eye that he does indeed use divine shield...multiple times in a 10 minute. As far as I know, he is the only boss that will heal himself to full health.
The rest are the bits of information I had with how these bosses fight.
Alliance:
Highlord Bolvar Fordragon----A combination of warrior and paladin, divine shield + cleave + laying of hand? (heal himself to full, but didn't see his mana go down. I want his talent spec!) Summon stormwind guards.
Archbishop benedictus------so far i heard is that he bashes you with his staff and cast holy nova.
King Magni Bronzebeard-----Avatar from Warcraft III. Don't become immune to magic though.
High Tinker Mekkar------no fight heard
Archdruid Faugon Staghelm------been took down a few times, but I don't have any information on him.
Priestess Tyrande Whisperwind---only know she cast starfall sometimes. Summoning darnassus sentienal.
Lady Jaina Proudmoore----Massive AoE at very cramped tower and she will teleport your maintank outside theramore. (Imagining Jaina with a baseball bat and yell "Home Run!") Summoning theramore guard.
Horde:
Lady Sylvanas Windrunner----Shooting arrow with a lot of damage, melee with a sword and teleport around. Summon skeleton guards.
Majordomo Varimathas----no fight recorded
Warchief Thrall---Only saw him fight at distance from the alliance most wanted video. Summon Orgrimar grunts. (He is a platemailed shaman. i don't know whether he cast shocks or not)
Vol`jin-----no fight recorded
Highchieftain Cairne Bloodhoof---Same old Cairne from warcraft III. No rebirth though and the weapon is a giant totem instead of a halberd now.
k, hopefully these information helps.
That being said, the bosses have different "true levels"
Here are the list of faction bosses:
Alliance:
Highlord Bolvar, aka I didn't see a giant dragon standing five feet away from me, Fordragon----at stormwind keep
Archbishop, aka I have a basement inviting any horde warlock to summon raid me, Benedictus------at stormwind cathedal
King Magni, aka I need you to kill my son in law, Bronzebeard-----at ironforge highseat
High Tinker, aka no nobody know I exist, Mekkar------at ironforge Tinkertown
Archdruid Faugon, need anger management, Staghelm------at top of Cenarion Conclave at darnassus
Priestess Tyrande, aka husband missing for ten thousand years, Whisperwind---at temple of moon at Darnasus
Lady Jaina, aka I love green (Thrall) more than blond (Arthas), Proudmoore----at top of the Theramore central keep
Horde:
Lady Sylvanas, aka I am the queen of Zerg..er forsaken, Windrunner----at Undercity Royal Chamber
Majordomo, aka I can fly before the beer gut, Varimathas----at Undercity Royal Chamber
Warchief, aka I didn't ninja this platemail, Thrall---at Orgrimmar valley of wisdom
(Don't know his title) Vol`jin, aka I like to stand and chill while alliance raiding Thrall --at orgrimmar valley of wisdom
Highchieftain Cairne, aka I die three times a day at Warcraft III, Bloodhoof---highchieftian's tent at Thunderbuff
That being said, i think the easiest boss to take down will in fact be Archbishop Benedictus. Since there is a basement right beside him which is perfect for horde's summon sneak attack. The archdruid, Tyrande and Jaina are all standing at pretty cramped places, so they are a bit harder.
Sylvanas and varimathas are standing together. Thrall and Vol'jin is standing together. But no raid is really stupid enough to take two bosses on at the same time. They will simply pull one out.
Again, all bosses are acting as players in term of damage, which means they can outlevel you by 10000 level, but you will still be able to hit them.
According to the World of Warcraft Strategy guide, all the bosses are in fact level 63 with exception of Bolvar, Varimathas and Tyrande. (Don't flame me if I remembered wrong.)
varimathas, level 100---probably why no one has tried to mess with him yet. As far as we know, he could have kicked Ragnaros' ass by himself if he tried.
Tyrande Wisperwind, level 75----sigh...poor darnassus, with max population of 5 people at peak hour. Though I did hear quite a few raid wipe from her by the starfall.
Highland Bolvar Fordragon, level 90---if you are alliance come to Stormwind three times a day and watch he kill 7 level 62 Onixya's elite guards by himself and have 80% health left. It has been confirmed by my own eye that he does indeed use divine shield...multiple times in a 10 minute. As far as I know, he is the only boss that will heal himself to full health.
The rest are the bits of information I had with how these bosses fight.
Alliance:
Highlord Bolvar Fordragon----A combination of warrior and paladin, divine shield + cleave + laying of hand? (heal himself to full, but didn't see his mana go down. I want his talent spec!) Summon stormwind guards.
Archbishop benedictus------so far i heard is that he bashes you with his staff and cast holy nova.
King Magni Bronzebeard-----Avatar from Warcraft III. Don't become immune to magic though.
High Tinker Mekkar------no fight heard
Archdruid Faugon Staghelm------been took down a few times, but I don't have any information on him.
Priestess Tyrande Whisperwind---only know she cast starfall sometimes. Summoning darnassus sentienal.
Lady Jaina Proudmoore----Massive AoE at very cramped tower and she will teleport your maintank outside theramore. (Imagining Jaina with a baseball bat and yell "Home Run!") Summoning theramore guard.
Horde:
Lady Sylvanas Windrunner----Shooting arrow with a lot of damage, melee with a sword and teleport around. Summon skeleton guards.
Majordomo Varimathas----no fight recorded
Warchief Thrall---Only saw him fight at distance from the alliance most wanted video. Summon Orgrimar grunts. (He is a platemailed shaman. i don't know whether he cast shocks or not)
Vol`jin-----no fight recorded
Highchieftain Cairne Bloodhoof---Same old Cairne from warcraft III. No rebirth though and the weapon is a giant totem instead of a halberd now.
k, hopefully these information helps.