You know, if you were going to nail me down I would say that the 35mm would be the more useful focal length.
But I just keep thinking about that IQ that comes from the 24II
The 35 would be the one that I think I would find more useful.
Maybe they'll be upgrading the 35 to a version II soon.
I just realized what I should do.....maybe.
As I have two brand new T2i's (maybe a few thousand clicks in each) and a 15-85 and the other ef-s lenses like the 18-55, 55-250 and 60 2.8 macro I could sell all that and get a great prime or two.