The wide angle comparison would be like reinventing the wheel. You don't see many Micro comparisons though.
16-35 is generally regarded as better than the 17-35, with added VR, capable of taking 77mm filters (compared to enormous extra cost of a Lee kit for the 14-24), but has significant distortion at the wide end and is nowhere near as good optically as the 14-24.
So if you're prepared to take it's limitations (zoom range, lack of filters, large partially exposed front bulb element, extra cost) the 14-24 whips it.
And whips every other zoom wide angle out there. The only comparible lens, which renders better, is the 21mm Zeiss, but that's fixed focal length and with slight moustache distortion (which you won't notice unless you're shooting horizons)