what's that one thing that disturbs/confuses/intrigues you on many characters?
for example I find it confusing that some characters that should have two different damage types but only have one, which is better because it will be easier to find a good build and/or artifacts for this character but at the same time most signature powers are only tagged area meaning that melee/ranged stats won't affect them and unlike damage types signature powers don't get wrongly tagged for the character to become more viable, but that's probably just me, what about you?
hope this somehow helps @AgentVapor with his feedback request spree