Ski,
Well thought and very helpful...very helpful indeed!
Cheers,
Doc
I would go with the M9A1, it has a 1913 Picatinny rail slot, is made in Accokeek, and is compatible with all the parts currently available for the 92. The 92A1 has a different frame (it's basically the 90-Two) and recoil spring assembly (it's captive and not the same size as the 92 so you can't install the steel one).
That being said the 92A1 is a solid gun. The only ones I see with problems are cosmetic issues caused by rough handling during shipping, or damaged frames from ranges that NEVER clean the guns or swap out the recoil springs...
Get the Beretta.
ETA: For clarity the 92A1 is made in Italy, the [92FS Type] M9A1 is made in the US. They are very similar but not the same.