My rules state that if I am not sure about something that the decision has to be in favour of the fighter on the defensive. The decision that needed to be made was whether Fifth could control the T-1000. Replikators are formidable foes because 1) they can�t be destroyed, they just reform; 2) they can make more of themselves when sufficient material is available; 3) they can adapt to any technology and take control of it. Herein lies the problem. I assumed that the T-1000 was made of nanites just so I could use him is this battle (since this is a similarity based battle). That assumption was fine for the similarity but becomes a source of error for the battle itself (this is getting a little nerdy but this whole site is so who cares). I am not sure what kind of technology was used to make the T-1000 so I can�t say that Fifth could find a way to control it. If it is nanites then he can. If he is not, and is made of some kind of liquid metal with far-out properties that would inhibit Fifth�s control then this fight needs another conclusion.
I am going with the idea that the T-1000 is made from nanites, since I can�t come up with any other way for him to have those abilities. This means that Fifth can control the T-1000. I think this is a fair assumption (not against my rules) since we see the Replikators consistently take over any and all technology they encounter. They even did something that seemed impossible by turning the time-dilation device into a form of propulsion. So this means that Fifth would take control over the T-1000 and make him fall apart. I think this is a fair assumption but let me know if you think that Fifth wouldn�t be able to take control of the T-1000, since that is the only way this argument can be brought down.
Winner: Fifth (Stargate-SG1)