I finished the game some weeks ago. I definitely think this game has the best battle system (abilities, special attacks, battle cards, animations, ect.).
Story-wise, I prefer BIS, but I like Paper Jam's story too. M&L humor is present a lot, which is great.
I don't really have any complains about this game, though it was a bit too easy even w/o the Easy Mode (never tried it yet).
In general, I loved this

and

game! I recommend it to every M&L fans.