None of my favourites comes through, but I voted for kukem. DougJustDoug's design simply does not resemble a fighting mon, and as others have noted, it looks like a ghost more than anything. For Aragronbird's design, it isn't dark enough and doesn't fit the CAP's stats as well as kukem
I wish there were less posts like this in the thread. "Here's my opinion, and I'm not going to actually refer to anything specific in the designs to justify it" seems to be the popular thing to say. Grats on your postcount++, everyone.
I voted for
DougJustDoug, although Kukem's design is well done, and I applaud his artistic credibility.
Why it resembles a fighting pokemon: Look at the right (our left) hand, that is the shape of a boxing glove, which is a pretty straightforward fighting symbol. It has been used since generation one to resemble fighting since Hitmonchan. The brown color scheme is also a notable fighting-type correspondence, similar to Hitmon(x), Primeape, and Hariyama, as well as being in the neighborhood of the fighting icon
itself. It's an extremely important color choice that Kukem's design does not incorporate that defines the voodoo doll as a primary fighting type. What I mean by this is that of the colors themselves, Kukem's design suggests that it is more of a dark primary, where Doug's suggests fighting primary, which is not important in terms of battling, but very important in terms of flavor.
Why it resembles a dark pokemon: There is a dark color scheme that many dark pokemon take advantage of that is not primary. With the dark brown eye buttons, the darker brown stitching, it takes upon the brown that is there that I have shown represents fighting, and makes it
darker. This is why it succeeds in representing both types. This is similar to Drapion's purple poison color, along with a darker purple stripe-like pattern, which easily illustrates its poison/dark type.
Before anyone tries to yell at me saying "hey, dude, Machamp is gray and it's fighting, and Poliwrath is blue! So is Lucario!" - shame on you, that is a strawman argument. Secondly, I don't know what is up with Lucario's typing, but whatever, it's a great pokemon.
Moving on, the stats. Oh, the stats.
Special: This one doesn't have to make sense. It's magic. Magic, in the pokemon universe. It's pretty easy to allow.
Physical: Boxing glove shaped fist suggests physical capabilities as well as being able to shape its fists into anything it wants. Therefore, it looks physically potent, but not over the top like Machamp.
Speed: It's a doll, how heavy can it be? Look at Electrode. I would bet a lot of people would say that a simple ball shouldn't have 130 speed but here we are.
Defenses: This is the only problem I've found. The BSRs suggested average defenses, and a doll doesn't quite fit that argument. It is arguable, though, that since it is a fighting type, it should be more durable than a normal doll, like a dummy, so I let it slide.
See, that wasn't so hard.