I have two HSS-strats (ash and swampash) with VHII and Crawler in bridgepositions. The VHII is really a great rockpickup. Due to the offsetcoils this one doesn't sound thin or weak. It's a very articulate and dynamic pickup, which cleans up beautiful. With drive/distortions it crunches and screams in the best way. Harmonics pop out with ease. My VHII is paired with two Mother's Milk.
The Crawler excels imho in bolt-on guitars. This one has serious mids, but the balance is nice. It's a bit compressed, which is nice for solo's. It still has PAF-character, only fatter and hotter. The Crawler can growl like a bear. Cleans up great too and splits very well with the middlesinglecoil for quacky Fender-tones. Mine is wired to have full humbucker and middle-sc and one coil of the Crawler and middle-sc (by push-pull). The first position provides a very full dynamic tone, which you even could use for jazzy stuff. I paired the Crawler with Irish Tours.
There are more good bridge-hb's for strats like the Holy Diver, Abraxas (a bit like the Crawler with quite some mids, less hot, more airy in the upperregister) or a Nailbomb (quite modern, to me this one sounds like 90's-metal).
The humbuckersized P90's will do great in HSS-strats too. P90's are midrangey and will beef up a strat.
Choiche is a matter of taste and the music you play.