I'm rather fond of IHG hotels in China, I'm staying at one right now. I book them through an AA eshopping link to IHG that gives me 3 miles/$ on top of the 20 IHG points/$, combined with the quarterly promos my IHG stays net a ~40% point rebate and almost half my stays are awards.

I'd also be wary of what counts as "4-5 stars" I stayed at a HI earlier this month which was locally considered a 5 star hotel, but would be 3 stars back home. I like the reliability of IHG and knowing I can get a decent meal at the hotel if I can't or won't figure out more colorful local options.