I'd say the 5150.
I've also been finding it a bit hard to find clips of the 5150 that aren't "gain on 10, bass at 10, treble at 0" drop-C chugfests. I've found a couple that got an old Metallica Kill 'Em All-type tone, except less buzzy and more "solid", as shown
here. I figure with a bit of tweaking (and maybe something like JJ tubes), I can definitely get the tone I want if the general tonality of the amp is like that.
The same guy also did a medley of Metallica songs with a more
...And Justice For All type tone, which isn't exactly my cuppa (I really don't like that whole scooped-mids-with-EMG-is-so-metal thing), but it manages to sound good to me nevertheless.
I've also heard some clips of people playing Van Halen on the 5150, and it sounded very good - I know that the rhythm channel would have what I'm looking for now, but I'm still not too sure about the lead.
Do you know of anyone here that has one and has clips of some really precise, tight lead stuff?
Shame the Metallica man didn't play any leads...