Sword Art Online Sword Art Offline Chibi.Yuna, Asuna, Yui and Kirito.
Here i just give you my take on SAO. And for why i like it so much.
Sword Art Online is a really good Anime. I used to hate SAO. I used to think it was a ripoff of .hack//, but one time I was at Game Stop and I saw them advertising a trailer and talking about the SAO Nawawala Song game on the GameStop TV. Instead of me thinking it was a .hack// rip off, i tried it for myself. And I actually enjoyed SAO. My friend at the time hated Anime. So I showed SAO to him on Netflix. And now he is a tagahanga trying all sorts of different Anime's, games, books and listens to Japanese music as well.