#2
Metal stuff?

Bare Knuckle Miracle Man
EMG 81
DiMarzio Tone Zone
DiMarzio Evolution
Seymour Duncan JB
Seymour Duncan Full Shred
Seymour Duncan Custom 5

Those are the most common. There are loads more out there.
#3
Anything EMG can handle distortion. ^Not just an 81, though that has the most bite(thereby suiting itself quite nicely as a bridge pick-up). Consider an 85 in the neck for all around tone.