Not that I know of, I had to resort to some number crunching.
My guess is yes though with an asterisk since he has written the "alternate universe" version of Spidey with Ultimate and, even then, replaced Peter with Miles after a while. For Amazing Spider-Man (or any 616 Spidey), my guess is David Michelenie though Slott is very likely close to passing him soon if he hasn't already.
Slott has done some great stories, but I think it's time for him to leave Spider-Man. It's gotten to the point it's weird to see Slott's name on something not Spider-Man.
I haven't read his Silver Surfer but I hear nothing but great reviews for that title; since it's launch, though, Slott has noticeably slowed down his Spidey output, recruiting help to keep it on it's 2x/month schedule. Whether this is a harbinger of things to come (his either leaving the title or handling a monthly Spidey book only) remains to be seen.
I suppose we would but, as I said earlier, my thinking is "just " 616 universe Spidey tales because, to me anyway, Spidey is the Peter Parker of the 616. And, even though some great Spidey tales have been told (a lot of them, actually) in other universes this is what the question seemed to be centered around.