I do far more no-gi because I find it funner, the numerous grips
in gi grappling annoy me, and I want to be able to effectively
operate without over-reliance on extra techniques from clothes.
I've seen guys who are great with a gi and terrible without one.
That sucks if you get into a fight with grappling involved and
you try to rely on grips that aren't there. That said I need to
do a little gi work, if you can escape with a gi then it will be
easier to escape without one. That's the main benefit really
plus it just builds awareness with the extra options (as
irritating as they are to have done to you). I doubt I'll ever
really use much in the way of offensive gi techniques though, my
no-gi skills are way too ingrained.