I like 357 Sig and 10mm.
Have Glock 32 and 20SF, so not "apples to apples" but /anyway ...
Different grip sizes, I like the larger grip, smaller frame size is okay too.
Different slide width, no biggie to me carry either IWB.
Much prefer loading 10mm (hand loading) 357 Sig is PITA to hand load IMO.
Either exceeds 500# KE with factory ammo.
1mm bigger bullet diameter of 10mm achieves desirable starts with a "4" status. :supergrin:
Glock 32
Speer Gold Dot 125 gr. @ 1,344 fps / 501# KE
Federal HST 125 gr. @ 1,358 fps / 512# KE
Glock 20 SF
Corbon 150 JHP @ 1,276 fps / 542# KE
Handload Nosler 150 JHP @ 1,274 fps / 541# KE
Hornady 155 XTP @ 1,335 fps / 614# KE
Handload 155 XTP @ 1,366 fps / 642# KE
Hornady 175 gr. Critical Duty @ 1,158 fps / 521# KE
Handload 180 gr. Gold Dot @ 1,146 fps / 525# KE
To preempt the near certain comment about how I could get boutique 10mm ammo that delivers over 700# KE - I know already.