I'm thinking about making an fps. I like the idea of pre-rendered animations or real-time third person cinemas leading to first person play at the start of each level. That way you set the stage better. The first person lacks that by itself-- you'er there looking through the eys of the player from start.

I tend to like first person view-- more immersive. For mutliplayer though, you have to select one or the other-- or be able to force a view type as the host. Mechwarrior Vengeance was like that. Third person can give an advantage to some players since of course a third person allows a wider view.