I had a Lee Jackson GP-1000 and a Mesa 50/50, I called it my sh*tty 80's rig.
It worked pretty good for 80's sounds, but it was all mid range and had almost no low end.
Some preamps I have found pretty notable are:
1. ADA MP-1, pretty much the staple of the 80's
2. Peavey Rockmaster, Amazing tone IMO, very old school but just really well done.
3. ENGL E520, again, pretty good, and a bit more versatility.
4. Lee Jackson GP-1000, Zakk's "No Rest for the Wicked" tone.
5. Marshall JMP-1, again, pretty much a staple.
6. Digitech Twin Tube GFX-1, lesser known, but I've seen a few around.
In terms of poweramps, I mean, you only had so many options back then.
Mesa, Marshall, VHT(1989), and Peavey were pretty much the only contenders for Tube poweramps I believe.