Nogizaka Haruka no Himitsu, B-gata H-kei Recommendations
Both involve the most popular girl in class falling for the plainest boy in class.
* Both have female leads that are exceptional in some way, and male leads that are at first normal, but turn out much more than that.
* Both female leads have a secret they're trying to keep from everyone.
* Both show the progress of each of the lead's feelings for each other.