I usually pick hotels based on price, location, and purpose of the trip. However, that seems to spread points over too many programs. What are some strategies? Here's my provisional strategy.

Primary program is Hilton Honors and Choice Privileges. That covers standard and budget hotels.

Some might suggest Starwood and IHG for similar coverage.

That leaves out Marriott and Best Western, though Best Western used to be plentiful but now is small.