I, personally, like a game that lets me actually do stuff and I often like a game with good/fast-paced/epic action, not a game of mostly cutscenes and an accasional gameplay segment, making teh game mostly an FMV game *coughXenosagacough*
First person shooters are hella fun, especially when the enemies aren't human so you have no idea what the next monster will be. Nothing like filling an angry 10 foot tall behemoth with hot lead.