Snsds best album is without a doubt their 1st Japanese Album.
Not only is it bop after bop after bop but it's actually consistent and coherent for such a high profile pop group. It's probably in the top 5 best j-pop albums of all time. Everything else they've released just doesn't match the quality and general slayage that it does. I would have to say that Lion Heart is probably my second fave album of theirs which I know people thought it was really basic but idk, I rearranged the tracklist and it flows so much better the way I've made it.
Overall Snsd is the most Iconic Girl Group of all time so!