I'm glad I leveled both (though I really disliked it) just to have more flexibility in groups. Both are very well balanced in respect to one another, I personally have a little more fun on Warrior. You should be fine on tokens, just pick which one you want to gear as main. Both can use Darklight, CT, and Allagan gear, so it's really just the myth purchases that will warrant consideration (they do share myth accessories, as well).