I like Simple mode, since it's quite similar to Super Mario 64's Lakitu camera, and I am a long-time SM64 player. So I find it much better to control in that mode.
My controls As i like to call it. Simply-Standard. I just turn off every camera option on simple. But my controls are vanilla srb2. Execpt my weapon next and prev is + and -. My custom buttons are z x and c. And im not a mouse user.