Character roles only indicate that they're very different from who you are as a person, and for me, it's fun hiding behind characters that are so unlike who I am.
With voice acting, it liberates you to play characters you'd never do in a million years because you're physically not right. You can show up looking like hell, you don't have to memorize your lines because you can read them right off the page, and you get to play the most fun parts. You come in and you kick everyone's ass and you get your own ass kicked, and then you go home.
I love ensemble pieces, I love being a part of the entire tapestry of a piece, but I think character actors do have a lot more fun, and there's a versatility involved that's challenging and fun, to come up to speed and do what's required of you.
