In the case of this hotel and availability for next week shown on marriott.com, the only nicer room is a 1 Bedroom Junior Suite, 1 Queen, Sofabed which is not on the CL. If I were a manager and you booked a CL room, I would question whether upgrading you to a 1 Bedroom Junior Suite was an upgrade especially since the regular rate for a 1 Bedroom Junior Suite is $159 and the CL room is normally $169. Personally I would book the non-CL room and save the $8.

You are going to get lounge access anyway.