much difference between airbus 330 and airbus 332?
 

Both would be on US Airways transatlantic.
Also: what's the 321 like? (That would be between Germany and Istanbul.)
Thank you.

The 332 is an A330.

USAir has 2 different versions, the A330-200 (332) and A330-300 (333). The difference is the number of rows in the plane. Both planes have the same seats, and the same 2-4-2 seating in coach. Unless you are an airplane guru you won't know the difference between a 332 and 333.

Ant the A321 quite is like a Boeing 737. Single aisle, 3-3 seating.

A321 is the longest of the A320-family aircraft. All have the same fuselage. The A321 is about the same size as the 737-900.

Thanks for replies. I forgot to mention that we'll be flying business class-- a very big splurge for us, and just want to make sure that it's worth it. (I.e. that the seats/cabin will be as comfortable as possible)

US Airways just revealed their new business class product, called Ennoy Suite, which features a flat bed. The current one is not as good, but still fine.

For intra-Europe, depending on airline, business class often just means a blocked middle seat and better food. Same seat as economy.