This is probably a quite controversial opinion, I actually prefer the 6260 (Bugera) to the 6505/+ (Peavey)
First of all, it has the abillity to use pretty much any power tubes you want which for me alone was enough to get it over a 6505. Second of all, I think its tighter sounding than the 6505 (with the E34L's I put in it) which works better with my guitar, which has a Holy Diver Set in it. Third of all, the clean channel on the 6260 is far superior to the 6505, I didn't try the 6505+ clean channel when I played it so no opinion on that.
Other than that, I like Eminence speakers so I got a custom cab by Texas Dragon cabs with front loaded Emenince Legend V12's and a closed back, its very "directional" as in you have to be sitting right in front it to get the full on sound, but compared to my old guitar teachers Peavey combo with V30's and my Ampeg VH-140c cab (with some kind of Ampeg Celestion clones I believe) the TD was very balanced sounding which I personally love, as I hate the upper mid spike of V30's, it also sounds the tightest/smoothest.
I'm sure you would be happy with a production cab but I was just throwing that out there, Mesa Recto cabs are very popular with 6505's and i'm sure would sound great.