I'd suggest the 28mm f/1.8--but that's only because I have previously owned the 35mm f/2. Using the 35mm f/2 anywhere close to wide open on my crop sensor left me unhappy with the image quality. Plus, the build quality is only eclipsed by the 50mm f/1.8 in its deficiency. When using the 35mm around f/4-f/8, it provided satisfactory results.