[nicfit]

I like both. But I think when I improvise (happened mainly with bandmates/people I knew well, just a few times with people I didn't know) I have great fun, while when I "refine" and write something (which usually comes out from spontaneous impros anyway) I feel more "satisfied". Playing a nice improv gives me a more "volatile" feeling, while writing something I REALLY like is like finishing a painting. Overall I'd say I like more writing.