What the hell you guys are talking? I suppose, there may be a huge difference while under 200 pot - whoever starts it, wins.
Once it goes 300 and above, warrior really have to have more than 150 pot than you, mage is good enough with +80
It all depends on pet combination and stars - Warriors go with defence/HP pet and P-attack pet converged + mage out.
Mages at low pot go around with defence/HP pet converged + defence and attack mages out. Once you are good enough, you go with 3 mage pets out.
Warriors may seem very powerful at early stages, but it comes really hard to kill a mage later because of damage share. What I mean, if you deal 1000 damage to warrior, all of it is taken either by the player or converged euds - for me that would mean 11 such hits and all my converged pets are dead. 6 more hits and I'm dead myself. So, imagine you are mage with 3 pets out - you make pets cast thunder, then cast lightning yourself - that is 3+1 hit. And there is also a catch - once converged pet is killed, it is dismissed, so warrior looses a lot of potency, so, actually that would mean, warrior like me would take following damage:
1000
1000
1000
1000
1000 <- defence pet dies, 44 pot down
2500
2500
2500 <-- attack pet dies, 47 pot down
4500
4500 <-- I'm fking dead, my mage pet is alive, but who cares
Now, what would happen if I were a mage with equal pets out:
1000 hit will be distributed equally between you and summoned pets, so, if you and your pets each have 5000 HP:
450 + 450 + 450 + 450
250 + 250 + 250 + 250
250 + 250 + 250 + 250
250 + 250 + 250 + 250
450 + 450 + 450 + 450
250 + 250 + 250 + 250
250 + 250 + 250 + 250
450 + 450 + 450 + 450
End of 1st CC, total damage dealt = 14.000, 3.500 of that to you, both you and all your pets are alive, while warrior would be dead by now.
So, it takes twice as much effort for warrior to kill mage, than for warrior to kill other warrior or mage kill warrior.
And also please note - 1000 damage is dealt in case attacker is way above the prey. If you are more or less equall, you will deal 50-200 damage (depends on gears, gems, pets and knight table), which is absolutely insufficient for warrior to kill the mage, because actual damage taken will be 4 times less.
That is also insufficient for warrior to kill other warrior.
However mages rule this time - warriors do hits 1 after another, thus there is a time to regenerate, mages do 3+1 hit (3 hits at the same time from pets, then 1 more from character).

I play Vegas and don't give a finger what TQ calls it.
If you see me around, take your time and check how my pot went down by 40 in 5 hours, thanks TQ for giving me deep butt lovin', I love you guys just as much as you do.