I would definately fly with Finnair, as the rumours i've heard from friends about Alitalia are terrible. The service is pretty much non-existent and the bad attitudes of all the crew was just shocking. I have an Australian friend that flew on a contract with Alitalia based in Rome for a year and they said they had fun, but it is just a bad airline, the crew were horrible to the pax, not to mention the crew smoking in the back galley, but also to work with, because she wasn't Italian, they didn't want to know her. She was already flying for a well known Australian airline, but because that airline trained Alitalia crew in Australia using their own facilities, Alitalia called upon the Aussie airline to supply crew to Alitalia during one of their many many strikes!
Definately, fly Finnair!
Oz