I would choose Hilton over Marriott most any day, especially in the mid tiers. HGI/Hampton/Homewood/Embassy are amongst the best assets. CY/Fairfield/Residence just do not compare. I generally only see a difference in FS Hilton and FS Marriott on a location by location basis. Some Hiltons suck just like some Marriotts suck...

Staying in a Sheraton tonight and would like to give more business to SPG, but they are limited in location and mid tier sector. FS Hyatt is pricey and locations are limited.

I will stay with Hilton this year, but am playing the promo game with Hyatt and SPG as the opportunity arises.