Mostly Av personally - my opinion is that there's not much reason to use manual for most shots, all I would be doing is fiddling with the shutter speed until the line says it's exposed correctly - much easier for the camera to do that.
I do however regularly use exposure compensation where it's obvious the camera is going to under- or overexpose. I don't really bother changing metering mode, just experiment if the first shot isn't right.
Very rarely I'll use Tv, more likely I'll use manual for long exposures with an ND filter for example (camera can't meter anywhere near correctly without enough light). M can be useful for macro as well
I do however regularly use exposure compensation where it's obvious the camera is going to under- or overexpose. I don't really bother changing metering mode, just experiment if the first shot isn't right.
Very rarely I'll use Tv, more likely I'll use manual for long exposures with an ND filter for example (camera can't meter anywhere near correctly without enough light). M can be useful for macro as well

