I'm Plat with Marriott (at 72 nites as of tonite & 3 more this week before I get home). I'm also Diamond with HH.
Both are awesome & disagree with the OP. Mrs Hazmike & I are treated as queen & king. We typically get upgraded to suites & nabbed the Presidential Suite @ the Rio JW recently.
Head to *wood if you wish

, but there's Marriott and everyone else.
The freally cool part with Hilton is that we have a no longer offered Mutual Fund...both Mrs Hazmike & I get credit for stays. If Marriott would offer the MF, now tthat'd be really cool, but I'm very satisfied.
Mike