If you go by optical perfection, the 56 and 16 reign supreme. The 23 is a tiny bit behind (it's basically the same) and the 35 lags a little behind (more so if you focus very close). That said, I love the 35 so much I bought it again after selling it. Zack Arias is actually right when he states that the 35 1.4 R is a magical lens.