I have a lvl 70 NE hunter and a lvl 70 undead rouge

this is just a myth.. as I play on both sides i see both sides..

I have played on the horde and lost 10 in a row...

i have played on the horde and won 10 in a row..

i played the alliance and won 15 on time..

it depends on the server and the group...

you have have the best geared people play in the BGs but if they are not talking in BG chat and talking about what to do and where to go.. you will lose 100% of the time..
if you want to win... you have to talk