Special thanks to Lewis for the Tigerhawk update. Lewis bought 15 of these puppies to help out! Looks like we have five actual variants out of the 10 or more that would have been possible. Sigh. And I thought it was bad enough when there were TWO of them. More than that, I'm just not gonna say. I quote Lewis:

..."Well, I think I finally have a handle on the whole Tigerhawk thing. I beleive their are five different variants. Here's the list with a time line to explain them. I have bought and returned about fifteen Tigerhawks at ten different stores in the last few days." "In the begginning... Tigerhawk was a dark blue, and he had a large right eye. This was the first variant. Then, something happened, and he became a little lighter, becoming what I would call blue. This was the second variant. Then, something VERY strange happened, and his helmet only lightened even further, to a light blue, but left the rest of his armor the previous blue. This was the third variant. I suspect at this point that someone called "stop the presses", realiziing that the color was not consistant over the whole toy. When they fixed it, instead of darkening the helmet, they lightened the rest of the armor to match the light helmet. Somehow, in fixing this "problem", they caused his left eye to shrink. This was the fourth variant. Then, someone realized that the toy was much lighter than it was originally, and darkened the paint. Unfortunately, they darkened it too much, causing it to turn purple, and keeping the small left eye. This was the fifth variant. Considering the number of Tigerhawks I have closely examinied, I think that this might be it. To recap, Large Eye come in all Dark Blue, all Blue, and Blue with a Light Blue helmet. Small Eye comes with all Light Blue, and all Purple."

Whew! Now THATS an exhaustive look! Thanks, Lewis!