Likewise, i find nothing wrong or garish about strongarm. Actually find it better than his original deco. I think colors should be ruled out, as half the franchise then becomes open game, reigned over by AMTC.
Also, Skybyte. While a cyborg white shark isnt that weird in the line, the way he was often used in fiction (swimming through pavement, swimming through the sky) combined with his character... It's just pure animated joy.
There's also RiD Megatron/CR Gigatron/Galvatron. A hand. A giant flying, disembodied hand. While it has mythological relevance to the japanese, mad props to hasbro figuring out a way to explain it to western audiences. A lot of his modes were nutty, too.
And any nebulon out of context. A human Transforming into a head, or an engine block, or even a gun is a really weird concept.
BWII Galvatron is glorious! It's a giant lavendar dragon of doom with cyclone cannons in it knees that turns into a very angry robot with hand-axes and a drill tank that looks a bit like a sex aid! What's weird about that?
Beast Machines Night Viper is pretty weird. Not the weirdest, but worth mentioning on a weird list.
"I used to think it was a terrible thing that life was so unfair. Then I thought, 'what if life were fair, and all of the terrible things that happen to us came because we really deserved them?' Now I take great comfort in the general unfairness and hostility of the universe." — Marcus Cole, Babylon 5 — A Late Delivery from Avalon
I was JUST thinking about him in regards to this list, too! Was going through TFU.info, looking so see if any of my "homeless" figures are a reasonable match to pose as various pre-beast wars.
Add to this list, BH Knockout. Croc/sportscar fuzor. Pretty crazy in a fun way, and I almost never use the word "fun" in regards to TFP. FYI to bw fans, the only way he could be more perfect as a prebeast Drancron, is if his translucents were orange. He is dead on, even down to color layout in robot mode.