The Matrix machines. There are as many of them as terminators and each one is far bigger with tentacles. It be no contest. Although I'd loved to see it. Well it's 3 am here. Goodnight.
Depends on if the Terminators are equipped with guns that emit EMPs. If not, they're screwed. I mean "The Machines" can rip apart massive ships with the lasers and tentacles. A little metal skeleton would be its bitch.