A
DYNAMIC Scenario. But HiTech will add the Ho-229 and Do-335 before I see that.

If I had a D8 on me, I'd roll that and give you an answer.
1-2 Pacific
Wish we had the TBD, D4Y, B6N, SB2C. Lot more options would be available.
3-4 BoB
Updating the 88 and 110's, adding the Do-17z and Ju-87B. The updates are for obvious reasons, the additions are for more flavor. BoB may have the most solid AC line up for both sides as is.

5-6 Eastern
I honestly cannot say one way or the other, if the USSR has enough AC for something as solid as BoB, without substitutes.

7-8 Italy
Let's face it, Italy is just another area for the US/UK to fight Germany. Italy is a minor role regardless of when, with their current lineup of AC.

Aside from AC I listed above, this is where I wish we had the Fiat G.50, M.S.406, Blenheim, Gloster Gladiator, TB-3, Tupolev SB, DB-3, I-153 and I-15.
Then we could do The Winter War.
