I don't think we got Kirita. More like the kind of feminine male avatar 90% of the Japanese men would choose if they played a male character.
The light saber must be a curiosity item for players who have accumulated a bunch of extra money. Not that it wouldn't be useful in a tight spot. However, it would be useless in the majority of real fights for a player who developed normally in GGO. You pretty much would need to be a transfer character from some fantasy game and thus with high specs but no gun experience to ace anything with it. That Kirito would go for the sword route is natural in the sense that he probably has no interest in remaining in GGO any longer than he absolutely needs to. Learning gun fights would make his stay that much longer. I still consider it nonplausible that a game about modern guns could be beaten with a sword, but perhaps he doesn't even need to rise quite that high. He just needs to find Death Gun.