Plastic Bateman
Super Freak
I don't own any figuarts, what i see are the kamen riders, which doesn't look bad but lack the close to the original presentation like Figma does, granted it's easier to do cartoon people than live actions, but comparing the riders, Figma looks more aesthetic, can't compare the articulation since i never played with one, but Ironman, might be good but i need to see a few more photos of them. I believe they also doing Dragonball? They have nice headsculpt however the body's abit out of proportion compare to the original design, the joints look similar to Figma. If you compare Figuarts Sailormoon vs Figma usual girl figure Figma seems to have better proportions. But the One piece looks good though so it depends on the series.
BTW i forgot about another company, Mezco, their Jojo line up has the best paint apps & sculpt, but their price are also high.
Medicos Entertainment, you're referring to their Chozou Kadou (Super Action Statue) line. I have a fairly substantial collection of them.
Mezco are an American company.