I'd reccomend EVIL.
I've been with them for a little while now, and I've enjoyed every moment with them; they Roleplay incredibly frequently, and there's a good sense of being snug with the other members.
Take a peek at the website, speak with a few members; get a handle on things.
Sadly, I can't dedicate as much time to them as I used to - for a variety of reasons - but they're understanding if you've got good reasons. 
I'll second that (for obvious reasons)
Drop by our website (link in my signature or in the previous post) or look one of the officers (Whirlmeister, Big Lunk, Echo Hammer, Screaming Skull, or Dark Impetus) up on line.
By the way, we're the European Villainous Immorality League,not to be confused with E.V.I.L, E.V.I.L., EVIL, or EVIL University. (All of which exist in game - ever wish you'd picked a less common SG name)
Hope to see you in game soon.
And if you dont like us have a look at this post...
http://uk.boards.cityofheroes.com/sh...;Number=284427
There are at least two other groups on the list that I know are atleast partially active, since I still run into their members.
Thanks for the offer. Your SG sounds very interesting. I will see if I can meet some of you people ingame. Its better for introducing my char I think.
hehe lol, no wonder this thread confused me, i was like, we rp? 
Well I play CoH/CoV and while having a lot fun I rarely see an roleplaying going on.
I'm thinking now of trying to find me a roleplaying SG, cause I would like to roleplay my toons now and then.
Are there any roleplaying SG's on Union to be found (hope so, since its the unofficial RP Server). Would be nice if someone could name some.
Or maybe if a member of a RP SG reads this and your SG searches for new members you can contact me.
But I have to send a warning. I'm not a very active member and like to switch chars (the concept of having a main char is unknown to me). Playing CoV since the start and my best villain is level 23 (best hero is also 23 (and I play CoH since beta)). So concerning Bases I wouldn't be much of an effective player (I also don't need a Base at all). Besides I would like to able to decide on my own when to enter SG mode. All I look for is a bunch of nice easy going people I can roleplay with abit.
Would be perfect if the SG would accept more then one toon per player and also have a hero SG for my heroes would like to join a SG too (see my hero post).