I just took a look at Anime USA's masquerade rules. It is interesting that they still kept a hall cosplay component, but they specifically differentiate it from the Masquerade craftsmanship component (i.e. AUSA's Hall Cosplay has no skill divisions, so its awards do not count toward any standings for purposes of entry into a skill-based competition).
2012 Convention Schedule
Steampunk Worlds Fair | Otakon