I enjoy the window seats, right on the edge of the wing, or right on it, it's fun to look out on the wing and then look behind you. If that's not available, my other favorite is the bulkhead in coach. Nice legroom, TV screens closeup, and then you are first in line to get food. Ah, very nice. But sometimes hard to get when you don't have an infant with you (my baby brother was 1 when we left to Finland, 2 when we came back) so we got the bulkhead on the way over, but one row behind the bulkhead (middle bulkhead i should say in both instances) on the way back to SFO.