Hilton is offering triple bmi miles through June 30 (Registratoin required.)
The usual offer is 1000 bmi miles per night, up to 3000 per stay. That makes bmi truly a favorite double dip mileage partner. With this offer it’s 3000 bmi miles per night, up to 9000 per stay.
Not all properties are participating, but the list that are is significant.
Over at Flyertalk there’s a discussion of whether booking a $45 AAA rate at the Las Vegas Hilton is worth it just for the bmi miles.
Gotta love low rates and per-stay (rather than per-dollar) promos.