I haven't seen the remodeled rooms in MGM, but their "old" rooms (included small suites) were very much inferior to even Caesars Palace Forum Tower rooms; CP Augustus Tower rooms were IMHO were "twice as nice" as anything MGM had to offer.
PS: Do you play slots or table games? Before I attained 7-Stars, as Diamond slot player, when I had gotten to over 80K, I got lots of nice offers from "Harrahs system", free rooms (even on weekends) and other nice perks.
I once stayed in a Bellagio Penthouse suite, which was easily the best hotel room I ever stayed in (which isn't saying all that much but it was still a great room). Most other rooms mgm stuffed me in (before the switch to mlife) were really nothing special, especially the rooms in the MGM itself. My favorite rooms there are the Signature suites which they unfortunately can't comp.
The rooms in Caesars properties go from very bad to pretty good. I haven't stayed in the Augustus Tower yet but I did think the Forum Tower rooms were nice. I used to love going to Caesars to play and especially hang out in the sports book, but not anymore. What they've done to that property is a disgrace IMO.
I'll be in Vegas over memorial day weekend and booked a suite in bally's, though it's probably not going to be as good as the last suite I had there.
P.S. When you talk about playing BJ, do you play on the 6/5 tables? I'll never play those but have had a hard time finding any that pay 3/2. Do you need to play $100+ minimum tables to get 3/2?