When did mouse inversion die?
dev.esl.eu
dev.esl.eu
Either can make sense, it depends on the game.
I use FPS style controls (down mouse = down gun barrel) on FPS games and yoke style (down mouse = pitch up) on flight sims.
It's probably a combination of the fact that we played 3D games (flight sims, Descent, etc.) before the mouselook FPS was invented, and we grew up on Joysticks before 3D games with mouse control became the norm. Those friends who don't use inverted Y got into games later than us.
Put your palm on top of someone's head and make them look around...
Personally, I use normal for shooting and inverted for flight.
If I'm using a game controller with an analog joystick, I use an inverted mapping. In those cases, I view manipulations of the joystick as analogous to manipulating a camera floating in space: pushing forward pitches the camera forward.
For FPSs, I'd use "normal" since I think of the gun moving.