When I first got into guitar, I was given advice to follow a "one finger per fret" rule with the left hand.
Basically, to fret notes with all four fingers, and to follow a pattern such that in any position on the fretboard, each finger has responsibility for fret it is covering.
The key to this technique is that you actually use the pinky as much as any other finger, so it does end up getting used quite a bit and becomes nearly as capable as any other finger.
I hope that description makes sense. I can give more information if it is not clear.
Now on to my question. I notice that practically no one uses this fretting technique. Nearly all blues and rock guitarists use only three fingers, and forego the pinky when playing lead.
I'm not going to change my technique - I'm happy with how I have developed it.
But I would like to give advice to other players, and I'm not sure if the advice I was given is necessarily good advice if it flies in the face of how most blues/rock players actually play.
What opinions or advice do people have for fingering lead licks in a blues / rock style? Three or four fingers for lead work?