Reading a thread about the Experience Jam stage spurred this thought. I considered myself a guy who concentrates on song structure and forming my parts whether they are rhythm, melody or leads. In my band, I'm the only guitar player and while I feel I write and improv well in that dynamic, I wouldn't consider myself a jam improv guy that is great at ripping a guitar solo for 5 minutes straight. Part of that is due to my position and just never having or taking the time to focus on that specifically.
I'd consider Chris (crgtr) great at that type of thing. What about you? What type of player are you?