I voted Europe. Again it seems more mystical (!) then the Pacific. I think the Euro campaigners had it tougher from the point of view of E.A numbers trying to hack them down, whilst the Pacific chaps had a navigational nightmare.
I voted B-17 as best heavy bomber. Largely because I have read it could take awful amounts of hammering and still fly - like the case of a B-17 based in Amendola that had an 8 by 8 foot gap blow in its waist by flak over austria. It made it home, and then broke in half only after landing...