No brainer
Hands down winner by a landslide--
HK USP40c
ergonomic, proper manual of arms, accurate, gentle recoil (for the caliber), under 30 ounces...
I've shot the Glock 23, Sigpro 2340, Sig 229, Ruger P94, and Walther P99 all in 40cal; give me the Heckler & Koch.