Transformers prime was a fun series, I loved Peter Cullen reprising his role as Optimus.
The fun thing is, that Fall and war of cybertron are conisdered canon to the Transformers universe, while the movies are considered non canon at all. They are nicknamed Bayformers for a reason.
The problem I have with the movies, is that it just isn't transformers, It's giant robots beatign the crap out of eachother with shia lebouf, trying to fit in and making attempts to care for him.
the first movie was not bad, the second got a little : Okay I have seen this before, the third one was just bad.
Ironhide gets killed and no-one cares. NO ONE
The plot of the three movies are all the same: Autobots are at peace, decepticon return, find power source, autobots destroy power source and win.
With the third movie adding a plot twist of the power source being stolen by one of the primes and then gettign destroyed by the autobots.
Returning Optimus as a flat bed is a better choice, but sadly the new movie changes him back to the long 18 wheeler truck with flames, quite fast.
Luckily they dumped shia and put mark whalberg in.
let's hope that the TMNT movie just doesn't stray too far from the source material.
As a final note:
G1 optimus offered Megatron multiple chances.
G2 optimus gave Megatron multiple chances.
Armada Optimus gave Megatron multiple chances.
Energon as well.
animated too.
And even in Prime he still doubts to kill Megatron in the end.
Optimus offers every sentient being a chance for redemption.
To let him destroy Megatron so incredibly brutal, destroys everything Optimus ever stood for.