On a scale of 1 to 11, of course.

I've been thinking about this for a few weeks now and I've decided that I'm an 11. When I am enjoying my music I want it to be as loud as possible.

Same.

Thanks for that.

Next week on the PRF: how tasty do you want your food?

Totally 1. If I can hear it, it's too loud.

I like it loud as war.

Loud enough to drown out the voices, man.

Seriously, as long as I can hear everything clearly, that's loud enough. That's in the case of home listening, and the number would depend upon how much background noise there is around at the time.
Rehearsing and gigging, my drummer hits the drums very hard, so everything is usually at about 9 or 10.
I haven't got the '11' upgrade for my amp yet, maybe I should TAP the boys for some more cash.

i can't hear you, what?

10.7

No....wait, that's too loud.

10.6