Re: What fret size do you like?
I depends on the fretboard radius.
In general, I like Fender vintage small frets but can only deal with them up to 9.5". I "grew up" on an Ibanez Blazer, that probably explains it.
When things get flatter I can't get a good enough grip when bending. With small frets the next strings I bend against have a tendency to slip below my fingertips. Sometimes that works better, sometimes worse, depending on temperature and such.
The flat and wide Gibson frets I was into big time long ago, but now that I actually pay attention to where I'm bending I like regular jumbos.
I have the super-huge jumbos on a scalloped neck, that's definitely too much. But my Chinese Les Paul has them, too, on a 12" and I've got to say the frets look a little un-Les Paulish but the grip is there.