I've been looking at selling a couple of my lenses, including my 70-200 F4, to purchase an F2.8 non-IS. Naturally, my addiction to the F4 is almost uncurable, as those who have owned one would understand.
My question for the masses is: For those who have experience with both the F4 and F2.8 non-IS versions (both Canon) of the 70-200, which was your favorite? The colour and sharpness of my F4 is absolutely stunning, do you find that the F2.8 is similar?
I don't want to give up a great lens unless it's to fund an even better one 
Thanks in advance all!



