Megatron and The Fallen whether or not someone as powerful as a Prime can defeat The Fallen while not a Prime

THE FALLEN - “ONLY A PRIME CAN DEFEAT ME.”; MEGATRON - “BUT IF I JUST KILLED OPTIMUS PRIME EARLIER… THEN TECHNICALLY, THAT MAKES ME MORE POWERFUL THAN YOU, DOESN’T IT?”; THE FALLEN - “NO. THAT’S UP FOR DEBATE.”