I had the impression (when I was there for nine days in August) there are way too many Marriotts in the LM - so I can't say I am surprised! I was particularly surprised there were 2 Westins. So this reflagging corrects that!
My PF is the Pinnacle. Following this thread I also see other FTs like the Delta - largely for its location. I preferred the Pinnacle because of how they dealt with the pandemic