Including my current lenses and others I'd like to add on a crop camera.
1# Tamron 17-50mm 2.8 II
2# Canon 50mm 1.8 II
3# Canon 70-200mm 2.8 IS or Sigma 70-200mm F2.8 II
4# Canon 10-22mm f/3.5-4.5
5# Canon 300mm f/2.8L IS (not really realist but would be perfect for sports)

The 50 f/1.4 is probably going to be my next purchase, and will round out my 3 lens kit:

