theres times you cant stop it even with frost but most of the time its due to a group wipe i find anyway, where as a fire mage i was always almost dying
water elemental is great for cc, so is frost nova, cone of cold slows 60% with permafrost, and even your frostbolt slows them 50%, when they are frozen you do a lot of dmg too

perhaps this is just me, but i went deep fire, yet i tended not to die. perhaps it isnt that fire sux, but it just didnt fit ur play style. for example, u can cast a fireball from 46 yards in 3 secs itll hit, n itll either crit n cause some nice DoT or itll just pull the mob on u. by this point, switch to scrotch, much more efficient. if they get close, blast wave, FN, step back, another fireball, then if they get close again give em a dragons breath.

but back to the topic at hand, i agree that arcane is much better for pvp than fire or frost. my build for pvp is 44/11/6. i get the chance to freeze from my ice armor/CoC/FB, with the added bonus of a burst POM pyro, n the bonus kitin addition of slow. arcane power sends ur spells into a new lvl of power. plus, did i forget to mention the increase in mana, crit chance, bonus dmg, resistance, reduction of dmg, n clearcastin.

so yea, arcane FTW