First, thing I'd look at when trying to decide between those two brands, then when you try to narrow it down between a couple models, is EYE RELIEF! This is critical with pistol scopes, especially when you crank it up to 7, 9, or 12 power (depending on model)!
I ended up putting a Leupold 2.5X8 power variable on my 6.5 JDJ because it offered longer eye relief. At $400.+ just for a scope I realize that is a bit pricey for some people, but after seeing the clarity and ease of use on 8 power, I'm very happy with my purchase!!
The newer Burris pistol scopes seem to have a good reputation from what I've heard, so that's what I'd suggest if you can't get the Leupold!
Good luck, Del