I've always had a bit of a soft spot for the Mitchell.
Hideous thing. And really pretty much a piece of shit; range was poor unless stripped down. They really lacked power (look up "Flying the Hump -- India to China over the Himalayas and those things would occasionally just run out of ass and crash trying to do it). Not much in the way of loadout, speed or durability.
But by god, for a bit there they were the best we had. We had to get the job done with them and we did. Granted, having huge swinging balls like James Doolittle did certainly didn't hurt, but at least a little credit is due to one of the uglier planes we ever put in the air.