I found working in a band context hard, at least regarding personalities some people have. In my old band we were working like a machine (get everything written down in Guitar Pro, send the files to everyone, practice 2 times before a gig and nail it) but in the end we fell apart because there was too much ego going on from everyone. Other times people were great characters but then again the skill wasn't there. I'd still rather have someone who's a nice person and can't play like a god than vice versa, because you can always improve your skills but if someones a dick, you rather hardly can change that. Maybe people found it hard to put up with me, I don't know :P
I also found that writing songs works better for me if I'm sitting at home on my own jamming to my own ideas and working without someone who's with me in the rehearsal room trying to work out something that works. I enjoy it when someone puts his ideas and input into a song I've written on my own or the other way round, however I can't do the "live writing" thing.
I rang up a mate of mine I used to go to school with, haven't seen him in a while and he's jamming regularly with some other schoolmates, mostly blues. I guess I will try to play some blues with em every once in a while, I found it to be one of the genres that work great if you just wanna relax and play, especially when the people you're playing with aren't a set line up of a band you're part with. Let's see how that works out :)