which one of three

[Catalyst81]

OK, so after a lot of research I've narrowed my scope choice down to three:

Nikon m223 3-12x42 ($380)
Vortex Viper 2.5-10x44 ($359.99)
Grand Slam Weaver Tact. 3-10x40 ($300 on sale)

It will be used mostly for plinking from 100-500 yds and possibly some occasionally coyote hunting. I'm still having a little trouble deciding. They all seem like good options. Any opinions or advice?

[Catalyst81]

Just for fun lets throw in a 3-9x40 Zeiss Conquest into the mix. ($400)

[Hamstur]

imho, Zeiss is head and shoulders above the other three. I would include Bushnell Elite 3-9x40 in that mix.