Better class's when it comes to PvP in EQ?

[Daldaen]

Monks are common because they are pretty sturdy, have mend in a pinch and can FD off any train (PvP servers are notorious for having frequent trainings. People use the PvE Environment in their PvPing).

Necromancers as well, fearing players + strong solo DPS/heal regain abilities and of course FD.

All classes will show up but if you want to be a solo PvPer, something like a Magician or Wizard are poor choices as their strengths (pet / large damage spike) can easily be countered by a human, plus their lack of healing.

Enchanters were pretty good way back but the nerf to charming other players was somewhat early on from my recollection and that was a huge asset. Charm player x, sit at bottom of lake, lol while they drown :P.