best bet

as best one can

In the best possible way, given one's circumstances and abilities.

best laid plans

A proverbial expression used to signify the futility of making detailed plans when the ability to fully or even partially execute them is uncertain.

best of both worlds

A combination of two seemingly contradictory benefits.

best of the bunch

The best or most preferred person or item within a group.

best pleased

displeased, upset, disgruntled

best regards

Used as a polite closing of a letter

best thing since sliced bread

Alternative form of greatest thing since sliced bread.

best thing since sliced pan

Alternative form of greatest thing since sliced bread.