Ah, the old three-sided large-choil vs small-choil vs no-choil debate... I don't really have a strong preference on that, although I know that many do.
There are lots of different sized hands, but I also prefer the larger (S6 and above) straight Res-C grip. However, if you look back at pre-BDLE posts, almost everyone was clamoring for more mudders.
As far as the steel debate goes, I think Dan made a good choice when he went with 154CM for the Scrap Muk. I won't boycott satin carbon steel, but my preference is for non-stain-resistant blades to be coated.