ConanTheDestroyer
The Cimmerian
I love all four of the Arkham games but Origins is what I would consider the weakest. However it has by far the best boss fights in the series like Bane, Deathstroke, Copperhead, etc to name a few ( I would even count Electrocutioner). City had solid bosses especially the great Mr. Freeze fight though I still overall prefer Origins' bosses. Asylum's bosses weren't all that impressive and Knight was more concerned with tank battles.