What character should i pic for RvR?Follow

It really depends on who you play with. IF you are just looking to get into a PUG, the two most demanded classes will always be clerics and sorcs, since no group can really compete without those two.

Theurgs, Cabbies, Mercs are also nice toons, but almost any toon (with exception of necros, stealthers and maybe friars) can get groups more often than not.