Well This is obviously old news. But the scene where Megatron "kept Unicron busy" was spectacular. I hate to give such a praise to the main villain, but Megatron was awesome there. It's almost as if Megatron alone is more powerful than Optimus and the three Autobots soldiers combined, as it took all four of them to fight the 3 giant Unicron manifestations with Optimus almost getting crushed. On the other hand Megatron managed to took on the rock giants and even smashed one of them. To be fair, Megatron has one combat advantage the Autobot don't, flight capability, which also grants him the maneuverability to effectively fight the giants. Still, whatever the reason, it seems Megatron is the better fighter than the Autobots.