Given this info, I would look to build up the heavy bomber force in the UK. This will serve two purposes initially:
First, it will draw fighters off from the East, which will help the Russians more.
Secondly, while the Allied bomber group build up is in progress, they can pick at the edges of the German fighter support to help keep the German production down some.
After the force is built up, perhaps some carpet bombing on a picket covering quite a bit of space combined with an invasion will allow the Allies to get ashore in force in France. The Axis dispositions are also vulnerable to paratroopers that would back up a landing, especially along the west coast of France.
The Axis appear to be loaded for bear in Spain to protect Gibraltar, but they have to be weak in other areas and the Allies should be able to exploit their command of the sea, then later, their command of the air, to good effect. I also agree that the Allies need to look at getting some fighters to the Suez area if possible. They can still remain a thorn in the side there for awhile yet.