Names that really pique your interest or have some deeper meaning or just sound really cool.
For me, I like a lot of SMT/Persona titles, particularly - Nocturne's Japanese name, Lucifer's Call and the Persona 2 duology, Innocent Sin and Eternal Punishment.
Were there any games you liked in part because of their title?
That does sound sick. It's too bad folks can hold onto good titles like that.