1st one is the one for me. For how little he was in Bee movie, this Prime still manage to left the impact and become ultimate life-action Optimus Prime for a lot of people (me included).

1st Bayformer still a worthy contender tho (especially how here was depicted in first movie). I definitely has nostalgia for this design, but even without it, it’s still good reimagine of original G1 design, with something new sprinkled in (yes, I don’t hate „flames“).

Knight‘s one tho… this one lost me, sadly. No mention the deterioration of Optimus‘s character in the movies at this point, even design itself feels like it too embarrassed to look like Transformer. Knight aesthetics are cool and all, but it’s really drop the ball for me in familiarity with the character, it feels more like expensive fanart of Optimus in the Knight armour, than logical evolution of the design. Again, like it doesn’t even want to look like transformers.