i think it's quite telling so as a service to the site, out of the goodness of my heart i feel like doing it for more bombers!
B-24H/J
4x R-1830 at 1,200hp each- total 4,800hp
Empty weight- 36,500lbs
Maximum overload TOW- 71,200lbs (i can't find the standard MTOW)
power/overload TOW ratio- 0.067hp/lb
B-29 (these aren't from the world's most reliable source however)
4x R-3350 at 2,200hp each (when you could get them working

) total- 8,800hp
Empty weight- 74,500lbs
MTOW- 135,000lbs
power/MTOW ratio- 0.065hp/lb
HP Halifax Mk.III
4x Hercules XVI at 1,615hp each- total 6,460hp
Empty weight- 38,240lbs
MTOW- 65,000lbs
power/MTOW ratio- 0.099
Stirling Mk.III
4x Hercules XVI at 1,650hp each (different production run to the HP's) total- 6,600hp
empty weight- 43,200lbs
MTOW- 70,000lbs
power/MTOW ratio- 0.094
so for the 6 major heavies of the war it's the general trend that the British bombers have more power at hand for roughly similar weights, suggestive of better engine out performance but obviously you'd still have to look into power loadings etc to get a better idea..........