One thing of which to be aware if you're considering the 14/2.8L II or TS-E 17/4L is that neither lens can support filters.
Both lenses have a significantly convex objective element which protrudes considerably beyond the lens barrel. The 14/2.8L II has an in-built metal hood to protect the objective element, but neither lens has filter threads.
The 16-35/2.8L II has an 82mm filter thread. If you use 'creative' filter systems (ie, glass/resin filters from the likes of Lee, Singh-Ray, Cokin and Hi-Tech, which slot into a holder), you need the larger size (supporting 150mm x 100mm filters), which Cokin calls 'Z-PRO'.