My unconventional strategy is to get partner miles on airlines other than the one I am elite on (United), unless the bonus is only available on United or unless the bonus is more on United. And for hotel/car my first preference is to get hotel/car points instead of miles.

On United I received:
Flight miles, elite bonus, online booking bonus, ATC bonus, bonuses for surveys
IAD double mile bonuses
One Hilton stay where they gave 1500 United miles
500 miles for mailing a SRS hotel form
Mileage Plus visa bonus miles and miles for charging to card.
United Dining miles.

On other airlines I received
Schwab bonus
Waterhouse bonus
Citifi bonus
Healthy Choice
Clickrewards
AT&T miles
MCI miles
Hilton double dip miles
Best Western miles (don't stay enough so opted miles)
Sheraton 12K airline bonus on AA
Radisson miles (don't stay enough so opted miles - also online booking promo).
car rental bonus miles (Alamo, Avis, Budget, Thrifty - got big bonus for Avis on BA)
Diner Club redemptions (double miles to BA, Delta).
AMEX Membership rewards conversion to Delta.

[This message has been edited by PG (edited 01-21-2000).]