Kup is stronger and faster but Ironhide has a more versatile gun, which can shoot a wide range of dangerous chemicals. He also has better long-range sensors, so he can monitor Kup from a distance. Both are very experienced and also very tough. Tech specs say that Ironhide is more fragile on the inside.
I don't see these two fighting, except under duress.
To make an OAP joke, perhaps the winner would be the one who remembered to take his medication that morning?
