I guess ill just play parrot =P

I would like to say that Kabuto, Blade and Den-O had the creepest kaijin designs because they were designed by Yasushi Nirasawa (one of Japan's best known monster designers).

Undead, Dopants, Zodiarts, and Orphenoch (love the simple B&W)

I will always say Faiz.

Something about the SOLID grey on every monster really worked for me!

That's actually what killed those designs for me. The monochrome washed out all the detail.

Concept wise I definitely like the Dopants, and to a similar extent, the Zodiarts. I enjoy the fact that similar technology could allow a person to transform into either a Rider or a Kaijin.

Artistically though, I really liked the Fangire. They stained glass look was really cool.

and see, thats the great thing about a discussion, diffrent tastes!

I liked the Fangire from Kiva, I thought the stained glass motif was pretty good.

The Fangire from Kiva and the Imagin from Den-O

For me its between zodiarts and the greeeds