I've played with them all. My eyes are still good for arm's lenth shooting, but for bench work, I find that wearing mild reading glasses helps my groups.
I don't like the red dot sights for hunting guns. They can't be left on as that runs down the batteries. I don't see the need for their night visability either. A 2X scope works just fine if you need to keep your groups really small, or your shooting is going down hill because you can't algin the sights perfectly.
None of my belt guns have them. I beleive a handgun should be compact, and easy to pack. All my guns have 4-5.5 inch barrels for that reason as well. For anything much over 50 yds., and an average closer to 25 yds., they work fine. If I need to reach further, I go for a rifle. E