I really can't vote who deserves to be Hokage. Shikamaru have a good brain but he's lazy. I think he's probably refuse to be hokage like Jiraiya did. He also refuse to join 12 Guardian Ninja (I'm not so sure if this exist in manga).

Naruto as the main character and with current ability..not impress me much. However, Naruto is fully motivated, inspired and protecter.

However, there's still lot of time for them to keep growing, mature, gain an experince and expand their ability. If we assume they still same as they are...Konoha must force Shikamaru to accept that Hokage position. He absolutely say `How troublesome, but i have to do it'.