I have put the GFS VEH pickups in two guitars for different folks and both times they sounded fantastic.
I love the Dream 90 and Dream 180, and also the Mean 90 for a fuller P90 tone.
I've wondered if the Mean 90 might be a better fit, (tonal wise), for my Iceman. The Dream 90's are nice, but maybe a bit too tame for the character of the guitar.
+1 on the VEH bridge humbucker.
I liked the Surf 90s too, but they are their own thing - not a P90 variant despite the name.
I have a set of the Rails humbuckers. I like them.
The Bigmouth is a nearly perfect match for QPs in terms of tone and output. I put Alnico 8 and Alnico 4 in mine for a little extra balls.I also like the "Bigmouth" which has a similar sound to the SD Quarter Pound. It sounds fantastic and splits extremely well to get a reasonably good Tele tone. And for a fuller more powerful pup the "Loudmouth" is a very good pup. I like that one either split or parallel more than the typical series humbucker mode...it's a bit too much output and strong mids for my taste. But split...it is a thing of beauty.