As far as cheapy optics go, anything hobby brand is out right away, primary arms and the like shouldn't even be considered.
If you want a cheap Leupold which will take a beating check out the vxr patrol
http://www.vdmsr.com/2013/10/leupold...iredot-on.html
It's not true 1x but I can say without hesitation that it doesn't really matter if you are running 4x all the time.
I like trijicon and haven't experienced the issues people talk about the accupower. But I wouldn't recommend the one I have (green mil sq) for duty use.