Striker Titans can throw flashbang into a group and go to town. Or FOH and clean up the rest. Defender titans can drop a bubble and refresh shields between groups. Or punch something for an overshield. Sunbreakers can use melting point on a big target, then slash away. Or, slash a few enemies, then grenade/melee for health regen. Sunsinger and Blade Dancer have good shielding and health regen too, but all 3 titan classes combo pretty well with swords. Edit: for looks alone, I have to go with hunter. They have capes and speedy jumps like ninjas.