As a Hilton Diamond and Marriott Platinum--no question. Both treat their top elites pretty well in terms of basic upgrades to superior views or executive floors.

However, Hilton points are MUCH easier to earn, and Hilton does not have any small print (like no free breakfast for top elites at HGI or resorts; or lounges closed on weekends so you're SOOL).

So as far as I am concerned--HH has been eating MR's (non-existent) breakfast--and lunch. And that was before Marriott's Megadevaluation last week.