Join Date: Jun 2005
Location: PBI | Formerly CLT, LHR & AMS (with just a bit of PSP)
Programs: Proud AA CK Spouse, AA Plat, HH Diamond, BonVoy Titanium, Caesars7* (comp), Wynn Black, HR Icon
Posts: 8,208
Caesars would be first choice. Followed by Paris (if it's a Renovated Red Room) and Planet Hollywood.
You can 'often' combine as long as you do NOT exceed 5 nights in a row. You can book the first 3 nights online, and then you will probably have to call to add the other two nights. Of course, they will often offer you a casino rate for the nights over 5; which at some properties can be as low as $49 (probably NOT Caesars).
You can also book multiple offers, but need to have a gap between reservations (IIRC, that has usually been 4-5 nights).