My vote goes to Bushnell Elite 3200 series also, although I would opt for a little bit more magnification than the 1.5x-4.5x. I have this exact same scope on my .375H&H mag and it has help up wonderfully.
Don't overlook the Nikon Buckmaster.
I personally don't like the VX-I because it has friction adjustments rather than click adjustments. Heck, you can get CAs on cheap $50 scopes, why can't Leupold at least put CAs on the VX-Is?
Zachary