Suggested by Destroyer The Spinosaurus is definitely going to take this as he is much bigger than the Allosaurus and a good bite will end things. It’s fair to say that the Allosaurus should be reasonably quick and able to dodge some attacks but ultimately there’s no way to go in and land blows without eating some counters as well. Both fighters have no long range options and so the size/power difference is very important here. Spinosaurus wins.