The Buffalo accident had nothing to due with the ice accumulation on the aircraft. The airframe is designed to handle normal ice accumulation and although the performance does change in icing conditions, it does perform rather well.
For Codehead. The Buffalo accident had nothing to do with ice, the aircraft did stall but not for the reasons you believe. See the NTSB investigators talking about the factors that caused this crash on Air Crash Investigators, http://www.youtube.com/watch?v=sLMPFJQTmZs
