I have a few (too many my husband thinks) of the stubby and really like it.
It fits nicely under my helmet and looks ok when you take your helmet off.
I havent tried the other styles so cant comment on them but I like the fact that the back of the stubby is lump or knot free - super comfy.

Here is mine

http://www.sweatvac.com/Merchant2/me..._Code=WWStubby