They're all great, but....
The GP100 is the star of the show
Yeah, I can't really agree with you here.
I honestly think the star (at least in terms of Ruger's offerings) is the SP101, great concealable 6 round defense revolver, accurate and fun as heck at the range too.
.327 SP101, .327 Blackhawk, .45 Vaquero, Browning Maxus, Browning Silver Lightning, Ruger no.1 .243, Stoeger .410 sxs, TC Contender, Remington 870 Wingmaster, Uberti 1860, Hawken, Moisin, Mauser, Marlin 60