Trying to figure out just who started the EMO genre is proving a bit difficult.  Sunny Day Real Estate has been given credit by some for that origin, as their debut album took the Post Grunge and brought melodic sounds to it.  The band did not last long, but they have been pointed out by many current EMO bands as a group that influenced them.  Although Sunny Day Real Estate seemingly meets the influence criteria, but we are guessing that the Hall will look for an EMO band with commercial success to put in instead.