Lens'

After looking into some famous portraits it has made me want to do my research into a lens that will give me the attention to detail I am looking for.
So far I have researched -

Canon EF 85mm f/1.8 - Book out? 

OR

Canon EF 24-70mm f/2.8L

OR

Canon EF 50mm f/1.2


After booking out the 85mm and 50mm lens these are the differences.. 

50mm 1.8

85mm 1.2

I liked the effect both these lens' gave but I think the 1.2 aperture on the 85mm was the more effective. I will try to use this lens going forward for my shoots.