Misaki is always doing her best and studying, but considering everything Usui has had as a child, he is somewhat smarter than Misaki. Especially in perviness. :3
We'll apperantly itz USUI since his ranked first. his intelligence is unbeatable. we'll at one tim in the test usui came 1st while misaki came 2nd,i think it was da fist episode? i really dn't remember.