I've had an Aerospace pump and it was crap.
I now have a 4 vane Moroso and like it a lot. MUCH better than the Aerospace.
Star is supposedly top shelf, but pricy. I've heard nothing but good things about the GZ pumps.

CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax