Get hand surgery so that your hand does fit a Glock..just kidding. I've actually owned all 3 types of pistols your looking at. So here's my impression of all three:
>Hi-power, great design, cheap in price and easy to shot. I did have problems in shooting some hollowpoints but will feed most all day long.
>'92 FS, Great ergonomics but a little too thick in the midsection. I dont like safeties on my pistols for defensive shooting since your small motor skills go to hell in high stress situations. So forget about manipulating that tiny little safety if you're getting mugged. Plus read up a little on the construction on the slide, its built to take about 20,000 rounds, then it breaks. Dont believe me, ask most any soldier/professional that shoots for a living. Still dont believe me, read Handguns 2000 or 2001 annual where the slide broke at a little over 20,000 rounds.
>Sig 226, love all Sigs. Shoot them for a lifetime and I dont think anything will break. I've had my 228 for about 7 years now, well over 15000 rounds thru it, no breaks only a couple of malfuctions (due to ammo).