I use the slide stop because it's a little faster. I first saw a thoughtful demonstration of that by Larry Vickers on YouTube in connection with 1911s (which I shoot most of the time).
The argument against "fine motor skills" carries less weight when you consider that pulling the trigger is a...
I like the Ed Brown captured recoil guide because it's very easy to disassemble so that you can run different recoil springs to tune the gun to the load.
Guide Rod Assembly for M&P M&P 2.0 | Ed Brown Products, Inc.
As you've discovered, there are many MRDSs to choose from. Your intended purpose and budget will be important to a decision.
Briefly, if this is a duty gun (hard service) the Trijicon RMR and maybe the Holosun 507T are considerations.
If it's for range use or competition, the DeltaPoint Pro...