If you enjoy Warrior, play Warrior. I main warrior and have tanked every mob there is to tank in this game successfully, with 1 exception. The only mob we can't tank is Turn 4 Dreadnaught with stacks / Double Dreadnaught, but we have another place in that fight so it's not an issue. Every other fight is perfectly viable with a Warrior tank, although PLD is more passive / easier to tank as.

As for Titan, well...http://www.youtube.com/watch?v=FfFCJdk8iWc