Overall best of the best for the stouter handguns IMO, including the real handcannons that far exceed, some that quadruple the recoil of a 44MAG...
1. Tasco Pro Class with their etched converging fine dot reticle and 30mm tube. Lightning fast target accusation, excellent for running shots hunting and for target shooting. Were available in 1X, 2X, 3X, 4X, 6X, 1-4X etc. I only have a 6X left out the many I've owned.
2. Simmons Gold Medal, specifically the 2.5-7. All mine are gone now, but they could handle almost any cartridge.
Both long discontinued, but they come up for sale now and then for far less than they cost new. The TPC's usually way less and usually no more than $150, some $100 (were $350-$400 new, a high price at the time). A company in FL services and refurbishes them now days, sometimes have some that find their way back into the mainstream.
Otherwise the older Burris models were a favorite, and I've owned many of them over the years. My favorite of all of them was the 2-7 and the 10X Target (old models, not the newer ones). Still have an early 2-7 that's seen uncountable rounds fired on several handcannons and is still as good as new.
Thompson Centers handgun scopes are also well made and can take a lot of punishment.
I never cared for the Leupold's except their 4X, a little less their 2X because of my uses. Their variable is the only scope I even blew up on a handgun, and not on that big of a handcannon in comparison to others I had.
Lots of folks love the Bushnell's, never had one myself.
Have tried lots of other brands, didn't like them for various reasons, they didn't live with me long and were never bought again.
Just long personal experience as a very serious handgunner from the mid 60's FWIW.