You have all this gear and you are asking which focal length you need??
5D mk3, EF 16-35 f/2.8 L II, EF 24-105 f/4.0 L IS, EF 70-200 f/2.8 L IS II, EF 100-400 f/4.5-5.6 L IS, EF 50 f/1.4, Sigma 180 f/3.5 EX macro, Speedlite 550 EX,
30D, EF-S 10-22 f/3.5-4.5, EF-S 17-85 f/4-5.6 IS You should know better than 99% of the posters what focal length you need for your photography. Select and purchase a lens to fill a need, not just because its the best.