It was great fun. The Serbian hosts have a brilliant set and wonderfully cheesy presenters. Ireland and Belgium (using a made-up language!) were dire and didn't go through. Of the winners, lots of funny little details; the Polish singer had the most amazing white teeth and Azerbajan's duo were glass-shattering male vampire sopranos. Brilliant.
Of the bunch, Kalomira from Greece looks like the likeliest winner to me. UPDATE: I saw an interview with her, and she was sporting a perfect Long Island accent. Turns out she grew up in New York.