What is your favourite shooter franchise?

[Rainbow Yoshi]

freebs2 said:
Metroid isn't no1 because I don't consider it as an FPS franchise.
My favourites are Half-Life for single player and Unreal Tournament (the 1999 edition is one of the games I've played the most in my life) for online and LAN multiplayer (8 players LAN beats easily any other Multiplayer experiences)

I mean any kind of shooter FPS, TPS, etc.