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?
The acronym S.T.A.L.K.E.R. is a list of the types of people living in the zone.
Scavengers, Trespassers, Adventurers, Loners, Killers, Explorers, Robbers.