I have the Crawler/Irish Tours-combo in my swampashstrat (MXG, made by Patrick Eggle). Crawler splits great with the middle-IT. Neck-pickup is too die for. Also the four pos. is very tasty with typical Fender-quack. The Holy Diver sounds a bit more modern then the PAF-ish hotrodded Crawler, but will split great too, I reckon. The Diver beefs up strats in the most pleasant way, lots of forummembers stated. It has balls for heavy rock and metal, but does clean up well. I think it's a great HSS-set for a strat.
(Btw, a VHII/Mother's Milk-set just arrived for my Fender American standard HSS-strat. The VHII is great when you dig in, with lots of harmonics.)