The best game couple would have to be Yuna and Tidus.
My adventures with Final Fantasy X has been quite a long one (have started the game at least three time and never have finished it because of lost memory cards). But every time I attempt to finish it, Yuna and Tidus still capture my heart. They’re so beautiful together. I’ve no idea what happens at the end of FFX or the whole of FFX-2 so I don’t know how their stories progress but with the new HD version out on Vita, I think I’ll give it another go.