plan_D, I have read, and if you do a google surch I think you can find it that the B-24 had the most tonage dropped.
Lanc, yes the Lancaster could take out more load, but at a shorter range, and the "Survivability" was not that great. If it could take the same amount of beating the B-24 or even the B-17 did then we might have an argument. For the night bombing the Lancaster and that big bombload were just great. But I should read up more on it.
As for Liberator pics, I did find some on Google, and am still looking. Also looking for information on Ford's Willow Run Plant. Now if the Lancaster could have been made on a mass line like the Liberator that would have been a sight 8)