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Courtyard Regensburg
Moscow Aurora
Moscow Grand
Moscow Courtyard
Samara Renaissance
St Petersburg Renaissance
Warsaw Marriott (though I like the Hilton there better)
Heathrow Marriott
DFW Marriott (the one north of the airport if there is more than one)

OK
Brussels Renaissance (best gym in Brussels hotel if that is important to you)
Brussels Marriott
Hamburg Marriott (I've never gotten very good service there, great city)
Courtyard Flora Prague
Phuket JW
Phuket Beach club
Bangkok executive apts (the one with the pool at the top)

Can miss
Brussels Courtyard - breakfast buffet $22 euros says it all, mediocre service
All courtyards that charge Platinum members for breakfast. Stay at the HGI down the street!!!!
Frankfurt Courtyard - terrible service and only one elevator for a lot of floors!!
Other Phuket - Khao Lak or something like that vacation club - worse service and its just an apartment complex with a mediocre pool.
Courtyard Istanbul airport - NOT at the airport. Poor service.