Kirisuna
Okay, who on earth doesn't ship this? It's the canon OTP of the show! The whole fricking plot revolves around these two. Seriously, the reason fan fictions of SAO are made is because there could never be any canon relationships besides this. It's my OTP. It's your OTP. It is THE OTP.
10/10
Reasoning:
None needed. I mean, it's canon!