I agree that Medicom definitely did a better job on the coat. i would hate the chocolate brown as well I even prefer my 12" Sparrow figure's coat from Zizzle. The likeness wasn't all that bad either if I may add especially for the $10 I paid for it, just needs repainted and put on a better body.
Medicom's also had a nicer texture, Jack's coat is very rough and textured, the HT coat was a bad color, bad material and not the best tailoring either. Aside from the sculpts, the coat was the only other big improvement I wanted to see over past Sparrows. So far, I'm happy with that, now just hoping they'll have at least fixed the coat too, any other improvements would just be a bonus.