That is my firm belief,
you will get much more money from from taking London that convoy raiding (this is a fact)
I you take London you get his cash upfront (~30IPC) + the income, and you can build enough INF on London to hold USA from retaking for a little while.
If you dont take it you only are going to get a maximum of the income of london from convoy raids, And it wont take USA long to run your subs off
And if UK doesn’t need to defend from sealion it is going to crush Italy in africa the med and the middle east.
By the time you take moscow both UK and USA are going to be to big to hold back from retaking france, but taking london first should give you the added cash to hold them off while you push (slowly) to moscow
You never want to trade territories with USSR this i know (any allied power really)
I really would like someone to explain a successful axis victory where Germany does not take london (early Barbarossa instead) in alpha +3 (vs atleast a have decent allied player)