I shoot mostly people and then just general travel/ vacation type photography. So I use a lot of focal lengths, but I find I'm generally in the 35-50, 70-100, and 150-200 range. But the 150-200 range is mostly so I can get tight head and shoulder shots with shallow DOF on my 70-200 f4. If I had a faster prime in the portrait range (such as 85 or 135), I suspect I'd use that more than relying on the 150-200 range.
In terms of zooms, I'm very happy with the 24-105 and 70-200 I have. I find f4 to be enough thanks to the higher ISO capabilities of my 6D, and I use the longer end of my 70-200 if I want shallow DOF.
That being said, I love the type of shots and IQ I see from any of the L primes I see sampled here. So eventually I'd like to add one to my collection, but just one. I don't think my budget or sensibilities will allow for more .
So which of the L primes would I be happiest with, and offer good versatility while fitting my shooting style?
I have considered saving up for the 24-70 f2.8, but I am leaning against it as I generally do not need that extra stop of light, and it's missing that 70-100 range I love shooting in. But if there is a strong argument in support of the terrific 24-70, I'm open to reading those as well...