Considerations of a very serious nature....

I am considering a new video game. :-) I played City of Heros for a long time... but I haven't played it much anymore because the people I played with weren't usualy on when I could play. I know we have a lot of WOWers here...
My questions:

Are the controls similar? I suck at video games, although I didn't do terrible at COH. I play casually so don't want something where if I take a week or a month off it will make a huge difference.
Do you play in groups or are there groups? If so are their more support characters? I played an empath defender. I enjoyed standing back and buffing the group. Is there something like that? That I was good at.
Can you move pretty easy in it? I have a horrible habbit on COH of getting stuck in corners.
Are people generally nice or showing you are new like blood in the shark tank?
If not what other MMORGs are there?
I know I want to try the firefly one once it comes out but other then that no idea.