I think every ring mentioned are outstanding choices. One thing about rings is, they don't have to be strong(really strong) to be a great ring for accuracy and close tolerances. Being a hunter that occasionally takes a fall on his gun/scope combo, I don't want rings that cannot take that impact and stay zeroed. Many competitive shooters don't so much as bump there rifle let alone drop it on its optic or rings/base optic area while in rocks or timber. I've done it numerous times slipping on ice or moss growing on rocks or algae on river bottom etc. The rings i prefer are Nightforce, Leupold, Badger style tactical (65in lb torque) side lock nut style with picatinny rail base. They are absolutely the strongest ring/base combination besides the one piece ring base combo. Are they the best for all ? Probably not. They tend to be heavier, bulkier and not as athletically pleasing. When I remove my scope to replace it with another scope, it returns to zero as before I removed it when put back on the rail. These ring base set ups are IMO, the best out there for my specific rifle uses.