INVADER JIM
I see a close fight here, and it depends on who hits first. Both could AP-stomp the other due to low durability, and both are at the same speed with prep. It all comes down to powers and durability. Zim doesn't have a lot of hax or powers, but Jimmy has Teleportation, Time Travel, Existence Erasure, Age Reversal, Morality Manipulation, Transmutation, Matter Manipulation, and Intelligence Manipulation to stomp Zim. If he strikes first, he wins.
Usally, Zim's the one to hit first, though. Same speed means timing and dodging rays that could graze their own ships. The big thing here is durability, and Zim takes it. If Jimmy tries to hit him, Zim can survive it, while he can easily one-shot Jimmy with a punch. It depends on if it's a space race or a gun-fight. If it's a space race, Jimmy could easily blast Zim down, but a gun-fight and Zim AP-stomps.
Really, it depends on the scenario. I thought Zim took it due to durability, but it depends on who hits first. For now, i say it could go either way.