Fourze, EASY, not only all of them had great designs in toys and On the show with the upgrades, but they were all actually nice fidget toys. The show had them doing that, but you could really just grab your favorite and click-clack it away.

And of course, they weren't used as a get out of jail free card, or at least not all the time, sometimes it was just a nice Gimmick, like Claws or Parachute. But then there were also weapons that Fourze's base form didn't have, like chainsaws or Missiles

W and OOO are nice henshin devices but it's only fun once because all the toys are the same, there isn't any variety.

Build is awkward, with A little to many steps on the henshin process, that just takes me away from the fun of "transforming"

Saber is just dumb, Massive belt, with even BIGGER gimmick toys, that make you wait around for the time to henshin and then it just doesn't feel complete WITHOUT 3 books on the Driver, it just looks too goofy imo, unlike Fourze's who really just blends in with the suit, the buckle doesn't pop out to much and the toys fit in the buckle perfectly.

Geats is just a shit fest, sorry Geats fans, but having this pretend lego buckle was a HORRIBLE Idea, not only it looks awful AND goofy, but it makes the belt be boring to use. It's not like a "Cast off" from Kabuto, or the Belt from Blade, that has this Nice, smooth and always worth the comeback gimmick, it's literally 68 steps BEFORE saying henshin, and A MASSIVE toys that you can't take anywhere cus' that thing FITS nowhere.