Probably Metacritic then, in which case it probably is the best lineup a handheld has seen in a single year.
I know you think I'm being a dick because I don't like the 3DS from a technological standpoint, but I'm honestly not. I've never been quite sure how you're supposed to objectively rate a library. I'd take the Vita launch lineup over the 3DS 2013 lineup without question because there are / were more games that appealed to me personally, but I'd totally understand if that made you incredulous. You can't sell Fire Emblem on a guy that doesn't like SRPGs, just as you can't sell Uncharted on a guy that doesn't like action adventures. I don't know if the way to determine the 'best' should be sales or scores.
None of this actually matters to the individual, but it's the topic of the thread, so what are you going to do?