I'm actually not that bad and end up first in my team most of the time. But I still end up loosing a lot of times.
I've also defeated teams with player >100 several times, but in the general picture it is still unbalanced.
The problem here isn't "experienced player being better", it's the fact that it's really frequent to get paired up with people LV 0-10 vs a whole enemy team of people beyond 80. Almost every other multiplayer game I have with some sort of level system does a good job of pairing up experienced player vs experienced players and new players vs new players. But this game has a tendence of pairing up a whole team of experienced players vs a whole team of new players, and that sucks.