Has it ever occued to you that it may not have been Seifer who actually killed Odin. I always found it funny that Gilgamesh is waiting up in the clouds for the sword. It would make sense that Gilgamesh nailed Odin making it look as though Seifer did it. The only thing I can think of going against this theory is the fact that Gilgamesh says "you gave me the 4th". So i dunno...guess its another one of those unsolved ff mysteries.