I hope this is the correct forum to post this question. Last time I posted, I was read the riot act for posting in the wrong forum. I could not find a RTW forum, so here goes.
I am planning a RTW trip and have done very little international travel ( few times to Europe). I am going to use Skyteam because I'm a Delta flyer (Diamond) and have a lot of skymiles. I have a rough idea of the places I would like to visit ( but any other suggestions would be appreciated ) so I really need help with places to stay.
I have :
Hilton Diamond status
Marriott Platinum Status
SPG Gold Status
Hyatt no status but points via Chase

So here is the list of places I need hotel recommendations:

Tokyo, Beijing, Hong Kong, Singapore, Sydney, Siem Reap (Cambodia), someplace by the Taj Mahal, Dubai, Moscow, Paris, Vienna, and someplace by Machu Picchu.
I will have to cut 1 or 2 places out due to the Skyteam restrictions but any suggestions on hotels or things to see would be helpful.