[Kiwami]

Gaim is my favorite. I just love how crazy it is. Zipper to another dimension opens, mechanical fruit appears, crashes down on the dude's head and then unfolds Transformers-style. So awesome.

Kabuto is my second favorite simply because how clean and technological it is. The initial transformation with the hexagons building the armor and then the cast-off. It's simple, effective and great to look at. Especially the cast-off part when the bulkier armor pieces start to move out of position.

For my third it's probably Kuuga, theres nothing very special about it really but I liked how they did it the first time around (and a few times after I think), where Godai would transform limb-by-limb through hitting the enemy, that was cool.

Honorable mentions: Drive (the armor parts appearing around Shinnosuke and then assembling the armor on his body, very Iron Man-esque), Black for the Showa posing (I think he did it best, also the background music accommodating it was badass), Faiz for similar reasons as Kabuto (very techy and I love the red lights) and Ex-Aid because they really did the videogame-theme justice.