Among the store-brand rebuilts, I'd put Carquest and Napa near the top. Autozone is dead last... their brand should be "Deadlast" instead of "Duralast."
But FAR better to look for a local electric motor, starter, generator, and alternator rebuilding shop if you can find one. It will take a day or two, the warranty will be 30 or 90 days instead of "lifetime," but the product will actually last a heck of a lot longer because they'll pick the right parts out of the bin for YOUR alternator instead of mixing and matching, and they'll do the work like they care what they're doing.