Mixing audio is my favorite creative thing to do. It’s the easiest way for me to find the “flow” state.
At home, I use Ableton Live because I like the interface and it’s very transparent. I’ve done major projects in Audition, Cubase, Digital Performer, and Reaper. I’m familiar with any number of effects, from compression, reverb, and EQ to creative effects like grain filters, flanging, amp emulation, and multi-tap echo.