Well, most of my shirts are shirred in the back, with no pleats, and two darts. Frankly, I'm agnostic on the shirrng--it looks right on my Neapolitan shirts because of all the hand-detailing, but could easily look out of place in a another application. Darts are more of a fitting feature than a stylistic choice. However, I hate pleats on non-sporty shirts. They confuse the purpose of the shirt.