While neither 3D world nor Bowser's Fury are the best Mario game on their own, a package containing both definitely is. This has both the linear level based adventure goodness of the 2D games, and the fun exploratory collect-a-thon elements of the 3D games. With both having really fun Co-Op and the latter having the best Bowser fight in Mario history, this is easily best the franchise has been so far. My only gripe is that if you unlock Rosalina in the main game, any other save files of yours should have Rosalina unlocked from the start.