What Dylan said...
I really didn't care for the IQ of my 16-35 F/2.8 II and sold it to fund the 24-70 F/2.8 II.
Once I got the 24-70 II F/2.8 II in mu hands, I tested the 24 F/1.4 II that I had against it.
My 24-70 was sharper @ F/2.8 upwards than the prime, which left me with a prime that vignettes badly @ F/1.4 is usable at F/2 and not as good onwards.
I sold the 24 F/1.4 II the next day.
I've also had 2 copies of the new Sigma 35mm F/1.4 and neither of them could out resolve the 24-70 @ F/2.8.
I sold all my Canon lenses except the 70-200 F/2.8 II and the 24-70 F/2.8 II.
Both are excellent and nothing much in the Canon mount comes close.
I'll wait for the new Canon UW (12 - 24 or 14 - 24) to get the third part of the trinity.
nice to hear i'm not the only one who did something like this. Although I still keep my 35L for when I really need the low light capabilities or for shooting video. I too am waiting for a new awesome UWA. In the meantime, I'm having lots of fun with the 8-15mm fisheye!
I still use and enjoy my primes. The 35L is an excellent compliment to the 24-70ii and I use it as much as the zoom.