I usually have one long term stay of 3-4 months each year for contract work and have always stayed at RI. The Marriott Megabonuses for each stay was always substantially more than the base points and elite bonus at RI; which made Marriott Rewards work for me. Now bonvOY has reined in the promotions to the point where it does matter where I go for extended stays. This year "Endless Earning" bonus would yield a grand total of 1500 points for a 15 week stay (or about a dime per week).
I've moved to Homewood Suites which awards 10 full Honors points per dollar, and adds real Hilton bonuses too.