Id say Hatebreeder because thats probably where most songs you heard came from.
from there buy, in order, SW, FR, and HCDR about a month apart from each other. that way you can listen to the album over and over for a month so you can get a sence of how theyve progressed.
ive found that some people will listen to Something Wild (and albums of a similar nature from other bands) and put it aside because its not as "catchy" as the other albums but go back to it eventually and realize how great it really is.