Are you nuts? The B-29 does just about everything better than every other bomber. It's only real handicap is its maneuverability and difficulty of takeoff.

FYI on taking off in the 29's in this game! #1, when you "spawn" out on the runway, raise your flap setting to "zero", as it automatically spawns out with 50% flaps. Use "auto takeoff" function in the game! Do not takeoff from runways which have trees or other obstacles in the vicinity of the end of the runway.
Engage "wep" as soon as you start rolling on takeoff.
Your "wep" will last for about 4,000 foot of climb, so leave the thing alone and let it work like it suppose to.
try to make all turns with no more than a "standard" rate of turn of 3 degrees per second.
Just remember that below 200MPH IAS, the controls are sluggish and slow to respond.
After the "auto takeoff engaged" disappears from your monitor, do dot speed 175 for best climb performance!
Pay attention to your E6B power settings for best cruise performance and fuel management!