Classes are not "OP" in this game, people without skill die from one or two classes more often than others and cry to forums about being killed from "stronger" classes. I played a gunslinger, I could kill any class I wanted. I've re-rolled to another server now and made an assassin, I can kill any class so long as I use tactics, not blind button spamming of lightning-thrash combo. I have also made a sage, easy there too, just depends on popping bubble and procs.
Yes, some classes can kill others in 1v1 combat, but all classes have a weakness too, BH and Troopers is getting interrupted during grav round/tracer missile, Sorc/Sage's is to get stunned and DoT'd, I can keep going on but there isn't much of a point since kids will keep making these terrible threads.