Help me pick a 22lr auto

[chrisguy]

Here are my criteria:
-Must be highly reliable, survive dings/drops, a field strip & wipedown gets 'er running most of the time...
-Must have readily available magazines (i.e. in a SHTF/Zombie scenario you might well find mags for it, like a Glock or M9/B92)
-I like stainless
-Factory option (or easy aftermarket/DIY swap) threaded barrel a plus
-Easy disassembly/cleaning a plus - some say the Rugers are a pain?
-Might need to nail a varmint/small game, but no 10m target work planned, mostly practice/plinking.
-Won't want a barrel over 5".

I've never had a 22lr pistol but from the reading I've done so far, here's what I came up with. Please vote/comment, and if you vote Other please suggest what you'd prefer to these options and why. Please forgive any 22-pistol n00b errors... and yes, I may end up looking at a revolver instead, who knows.

Thanks for your time folks!