Good thread! This one requires some thought, because as dasreich mentioned the strategic bombing offensive was central to Germany's defeat. I'd have to go along the lines of the war being longer, but germany still losing. For one thing, despite the bombing offensive, germany's tanks and weapon production was actually HIGHER in 1944 than it had been in 42 or 43. Also, many of the super-weapons germany was working on were pretty impractical, and I'm pretty sure I've read that Hitler did not want to research the A-bomb because of the time involved.
Even without the bombing offensive, I'd have to stick with my standard line- the russians eventaully would have overwhelmed the germans anyway. Probably would have taken longer though...

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