Wing Pentact for me, thats for shure. Those 'lil arrows he drew w/ it were pure concintated win. I especially liked how in his debut apperance, he wrote out his name in the air w/ it. Soooo stylish! Plus, his theme gets weekly play on my iTunes. I heart Dead End Game! Go Koutaro Tanaka!!!
Have anyone noticed that in these threads that the most recent one is always tied with another one? It really shows which one made a lasting impression on the fandom.