Based off your lists, we know what the winners will be. A-26 and Meteor.
No, I don't think we do. Meteor barely edged the Beaufighter and lost by a landslide to the Me410 and Yak-3. I suspect many of the Me410 and Yak-3 voters would vote for the Beaufighter over the Meteor. I don't think the Meteor would even make the final round. A-26 might win, but the P-61 could challenge it. I don't think you can have a poll that doesn't have obvious leader candidates. HTC themselves ran a poll with the B-29 on it, which ended up slaughtering the Me410 in the final round 61% to 39%.
As for what I would choose myself, the TBD and the SM.79.
The likely runner up of each; I agree with you about the first poll, P-61. However I would predict the Beaufighter being the runner up over both the Tu-2 and He-177.
Beaufighter might, but it is British and that is a bit of a disadvantage in the polls here. Not as much as being Italian or Japanese, but worse than being German. Final poll might be Beaufighter vs He177 in which case the He177 would easily win.
As a note, I had a hard time coming up with eight American airframes that aren't in the game. I had to leave off many, many non-American airframes to cut the second list down to eight.