I recommend using the Wii Remote as it makes the offline and online experience much more fun and active

However, Wii Sports Club makes intelligent use of the GamePad to make gameplay a lot more fun

Smart (not gratuitous) use of the GamePad

Now, as one would expect, the graphics are improved from Wii Sports, and they have found some innovative uses for the Game pad (as a tee in golf and for playing defense in baseball, to name two)

Don't have to worry about licensing issues (such as transferring content to a new Wii U if yours breaks)[+

a download would limit that and require me to bring my Wii U

Not compatibleWii U Gamepad: Compatible for 2 of the 5 games (more on this below)