paulga

I have both, and only rarely use the 56 since I got the 90 three years ago.   But I do not shoot many portraits, mostly landscapes, nature, flowers, cats, and headshots.  I also have the 18-55, and paired with the 90 it is perfect for my hikes.

I have the 56mm and love it, but when people ask me about buying one, I always try to throw the 55-200mm out there as a second option to consider for a smaller budget. While the 56mm is my first choice for portraits, the 55-200mm has decent bokeh when shot wide open, is fairly versatile for longer focal lengths, and you can find a good used copy of it for under $500.