lets think about this clearly.
Sentinels - were destroyed with ease by any member of the xmen, they dont have a forcefield, move very very slow, are not super intelligent and are controlled from a external location.
Megatron - Nearly Indestructible due to its force field, super fast, super intelligent and can probably hack the human made sentinel and in turn control it.
A regular sentinel would get monkey stomped by MT. Tri-Sentinel would be a good fight. Nimrod (a future sentinel) would outright destroy MT. In this case, I would assume we are talking about a single normal Sentinel which get routinely beat up by some fairly wussy mutants. MT wins.
Megatron isn't really a machine, he should be into something like "the deadliest bionic alien" or something like that.
First the reason Sentinels took over the planet is because there were so many of them made. This is about a one on one battle. Think of how easily they were defeated
how is the Sentinel not winning.
Yeah, megatron is lame. He should not have made it this far.
Clearly, everyone is smoking crack.
The Sentinels pretty much took over the planet. Megatron was routinely thwarted by a douchebag kid and a yellow VW bug.
What about the robot from "The day the Earth stood still"