I vote for the Corsair...
But just before we get into that, the Stirlings of No.7 Sqn. made the first landmark raid of 4 engined bombers, on 10/11 Feb. 1941 on Rotterdam...
Also, the Wellington was the first bomber to drop the 4,000 lb cookie, on a raid by No.'s 9 149 Sqn.'s in an attack on Emden, last night of March, 1941.....
So they did make a notable mark in history.....
The Corsair would've made an interesting difference if it had served in the ETO, I reckon.......