Race/Interval Shoe: Merrill Bare Access
Recovery Runs: Altra Olympus
Trail Runs: Altra Superior
I also sometimes do short runs in the Altra Samson (barefoot type shoe, was discontinued). In the past year the following have been my main shoe at some point: Altra Instinct, Alta The One, Sketchers GoMeb. The next shoe I want to try is the Nike Zoom Fly.