Usually I vary the weapon I'm taking into a level based on whether it's hallways or open, primarily melee or sky, etc., and the kinds of enemies in it.
For the Boss Battle mode, though, I only get to pick one weapon to take on all the bosses. I'm pretty sure clubs are out, but what features should I be prioritizing? Damage, range, autododge and defense, melee ability, status effects, or something else entirely?
Likewise, what powers should I be bringing with me? Heals seem like a no-brainer, but what else?