Off the top of my head, and by no means a complete list (and just from the last year or two).....

Likes....

Iowa City Marriott
Birmingham (AL-USA) Marriott
Indianapolis Marriott North
Milwaukee West Marriott
London Grosvenor Square Marriott
Westwood Village Marriott
Vancouver Marriott Pinnacle
Gravenhurst, ON Residence Inn
Madison, WI RI
Overland Park Convention Center CY
Montreal Airport CY
Paso Robles CY
Maple Grove, MN CY
Ottawa CY
Austin Northwest SHS (MoPac Expwy)
Guelph, ON, Fairfield Inn
Beaverton, OR FI
Burlington, WA FI
Gulf Shores, AL FI

Don't like.....

Overall, no real stinkers this year. I had issues at a few properties, but no "deal brakers' and not enough for me to give any property overall thumbs down....

Examples.....

Erie, PA CY (indifferent unresponsive attitude regarding item left behind in room.)
Austin South SHS (no compensation....or apology...for lack of hot water)
Lake Buena Vista CY at Marriott Village (staff seemed unprepared for peak occupancy week)
Atlanta Perimiter Marriott (noise from live entertainment in lounge)