I went through two Holleys on a 360, before I found a good Carter. Loved it so much I picked up a second as a spare.
Had issues with my 750 AFB (edelbrock) on my 440, until I got the 'strip kit' and tuned it properly, with the help of an LM-1 O2 meter. Then it was great!
With my 505, I had to go Holley, and went with a Dominator.
After getting some Quickfuel metering plates, that Holley has been one of the best carbs I've owned.
Long story short: I'm a big fan of the AFB carbs, but have finally 'discovered' Holley.
I would tend to agree with most of what's been posted. I'd put a AFB on a 'street' car, and a Holley on something for the strip.
Cheers!