Currently Online 
N64 easily. Best local multiplayer console with a plethora of solid games that supported 4 player split screen. Despite its dated graphics, its games are timeless - my sister/cousin/friends and I still rock games like Mario Kart, Smash Bros, Goldeneye, Mario Party, Diddy Kong Racing, etc today (or at least in recent months).
Wii U I just never quite got into. A few neat little novelties there and there like Mario Maker and parts of Nintendoland but not much to show for it in the long run, especially now with Switch poaching most of its great games for its own library. Was never really into the Miiverse thing or the big clunky plastic touchscreen controlled, just felt cheap and awkward.
"We hold these truths to be self-evident - all men and women created by the, go-you know.. you know the thing!" - Joe Biden
