Thanks AlanU! This is the kind of constructive response I am looking for 
AlanU wrote in post #13364255
took a quick look at your flickr and I see a 24L or 35L as a perfect addition to your gearlist. Alot of the photos I see would work great with a 24L. It has slight distortion but it gives a different perspective compared to a 35L.
I actually had a couple of full body shots of my friend with the 50mm and it's just not the same. I have to stand quite far back and the subject becomes too small. If I crop it the background will be lost and that loses the original intention.
I totally agree on the different perspective part when comparing the 24L and 35L. Just can't make up my mind ahah
AlanU wrote in post #13364255
You have alot of lenses that can serve as a portrait lens. I would assume the 24Lmk2 would be used alot more than a 70-200 f/2.8IS mk2 if your walking around.
I think you are right on that. The only reason why i sell the F4 IS is it didn't get much use at all. Gotta say i'd rather carry a couple of primes than one big white zoom lens. Guess i always prefer my prime than zoom. It's just that I've been hearing too many good things about the mk2 that made me want to try/like it
AlanU wrote in post #13364255
I wouldn't drop the idea of owning a UWA lens. You can have alot of fun using such zooms. I'm certain I'll be going 16-35Lmk2 on my next lens quest since its faster than my f/4 17-40L.
I am currently not really into landscape and will most certainly purchase the 17-40 when time comes such as holiday etc. I just don't think 16-35mk2 can replace 24L or 35L for pure portrait use.
AlanU wrote in post #13364255
You must drop the idea of using a 24 or 35mm as a portrait lens.
why would you say that? What do you mean?