I have always shipped Kirito and Asuna. It frustrates me whenever I see someone who ships him with sinon because he and asuna have been through way more together and Sinon doesn't respect their love for each other. Asuna killed herself for kirito and they would practically do anything for each other. It blows my mind anyone could not love the asuna x kirito ship.
Kirito (キリト, Kirito?) aka the Black Swordsman is the main protagonist of the Sword Art Online light novel, anime and manga series. His name, Kirito, was taken from his real name Kirigaya Kazuto (桐ヶ谷 和人, Kirigaya Kazuto?). "Kiri--" from Kirigaya and "----to" from Kazuto. He was chosen as one of the 1,000 beta testers for the closed beta of «Sword Art Online», the first ever VRMMORPG for the NerveGear.