samurai is the base class, not to let u confused samurai can be either ronin (katana) or shadowguard (dual halberd), ronin is better for pve while shadowguard is better for pvp, altho both can do pve and pvp.
and all the post on my top are right except the one who said the best dps = most money (while it's true more money spend = more dps) but u still can do well even without spending much or anything.
so yeah ronin, symphonist, vanguard, crusader, and maybe barbarian as well.
but you know, you don't need to choose what is the best from people opinion, just choose a class that u think u are enjoying while playing it, all class can do well on pve if build right.
All 7 classes have been maxed level thanks to experience dungeon !!