What is the criteria being measured? Without that it is a bar room debate with drunks!
I would say that classic definition is the ability to fight in and fight out with no escorts. That changes things a bit.
The 47 is a monster for load though it has almost no ability to fight in. At the first sign of opposition it would have to drop much of its ordinance just to take the 'Thatch Weave' serious. The 38 might be better at the self escort.
I suspect the better at self-escort would be the Navy birds: F6F-5 and F4U series. They have a pretty good load and with proper alt could engage in 'Thatch Weave" without dumping their ordinance.
The 190F is great but has a more limited ordinance package and less of a fighter once clean.
After much thought I am going to have to go with the wildcard. It is the Fw-190A5. Carries a single bomb just fine, once clean kills all (when flown by the right stick) and with a USB port has surround sound for some classic rock like Queen! BAM!!
boo