Bob:
I've tried mil-dot for hunting and I didn't really like it that much. I still have the scope (Bushnell Elite) laying around and may mount it on something someday, but that something will probably be a powder-burner on the order of a .22-250, .220 Swift, .204 Ruger, or .243.
For the hunting that I do with air rifles, I found the reticle to be far too busy for my taste and something of a distraction in picking out quail from the shadows of the shrubbery they lurk under.
Also, I sight my air rifles in for maximum PBR anyhow, so I don't have to mess with a bunch of hold-over / hold under in the field.
With my .20 R-1, I shoot Kodiaks in it, and nothing else. So I fired it through the chronograph to establish baseline for average muzzle velocity, then used Chairgun II on my laptop to help speed up the sighting in process for max point blank range. This max PBR falls short of 50 yards, but the drop between max PBR and 50 yards isn't so great that I need a lot of help compensating for it. I just aim a touch high with what I've got and pull the trigger.
I did the same thing with the .177 Shadow that I had as well as my wife's Shadow, and the result with Copperheads was a maximum PBR of 50 yards, which is as far as I care to try to kill anything with an air rifle. In the field, with those rifles, sighted in the way they are, a mil-dot is really superfluous, as all I really need to do is plant the crosshairs on the center of the KZ and squeeze (well, touch is more like it, with the GTX trigger installed, LOL) the trigger.
I reckon it's all what you're used to, but I've done enough shooting with the duplex reticles used in Bushnell scopes to work out how much compensation for windage, distance, and taget inclination to add into my sight picture to score a hit, and I don't need the dots for that in hunting.
Taste is relative, but I found I prefer the duplex reticle that Bushnell uses for hunting use. If I shot field target competitively, I'd obviously want the dots and the sidewheel A.O. focus and all of the other bells and whistles, and I'd be breaking the bank for the most competitive glass out there.
-JP
http://www.uplandhunter.net