>>5494519Thunderwing is undoubtedly the best Pretender, but might be hard to get.
The second best Con is probably Iguanus, since he looks good in all modes.
For an Autobot, I'd go with Longtooth.
His shell looks derpy af, but it's the only one that won't have paint chipping off from the head due to a helmet.
If potential paint chipping isn't a dealbreaker, I'd recommend Grimlock, Doubleheader or Pincher.