My coworker is a beast at churning out working code, but mine is often better abstracted and requires less refactoring to use in the future.

There are features where I spent 5-10x the time he'd do, but my code could then be used to later implement several dozen feature requests in mere minutes rather than hours and days.

Who's better? I'd say we've got different strengths, so depends on what you need to get done.