The "best" are arguably the T'SOB mounts from SSK Industries that can use up to four rings. However, the T'SOB is probably overkill on a 'standard weight' .44 Mag and more appropriate on one of the current handguns chambered in .800 Nuclear or whatever we're up to now.
I generally use Leupold rings and bases and I've never had a problem with .44 Mags.