Board Thread:Questions and Answers/@comment-25908228-20141222101442/@comment-6697950-20160514170039

He gave up on it at an early age though. So that doesn't really count as much experience.

ALO doesn't have levels. Skills and stats yes, but not levels.

Only Kirito did. The rest just imported their SAO characters. So technically, Asuna should have some sort of advantage (probably has slightly more HP). Though its relevancy is a different question, since ALO is a player skill-based game, not a level-based game. For example, Leafa is fully capable of competing with the top-ranked players, including the ones that grind a lot, despite having average stats due to not having that much free time to play all day.