My strategy for maintaining both HH Diamond and Marriott Platinum is to try to do one-nighters in Hiltons and multi-nighters in Marriotts.

Thus far this year I've got 30 stays (37 nights) in Hilton and 79 nights (including 19 CC nights and a few rollover nights).

The rest of the year will be spent chansing promos and picking a few more nights in Hyatts and Starwoods when possible.