Fire Emblem, Pokemon X/Y, Mario & Luigi games (Paper Jam is a lot of fun!), Etryan Oddysey, Mario Kart 7, Mario 3d Land, Zelda (Link between worlds, Majoras mask, Ocarina of time) Kid Icarus Uprising (one of my favorites), Luigi's Mansion
e-shop games:Gunman Clive, Pushmo, Steamworld
About Wii U, seing how you like platforming I say buy one because:
Super Mario 3D World (might still be best game this gen)
Donkey Kong Tropical Freeze (best 2d platformer since SNES. Really.)
Yoshi Wooly World (really charming)
Super Mario Maker (making you own levels is great. By following good creators you can play really cool and creative levels as well)
New Super Mario Bros U
New Super Luigi Bros (more challenging than NSMBU)
Mario Kart 8 is also an amazing racing game, miles better than the older Mario Kart games. FAST racing neo is a good racing game as well, really impressice for an indie game.
There are not a whole lot of RPGs on Wii U, but Xenoblade Chronicles X is awesome. Feels like a JRPG/WRPG hybrid and the world is really impressive. However, there are a lot of great RPGs on the virtual console if you're interested in those: Super Mario RPG, Paper Mario, Earthbound, Harvest Moon (SNES), Golden Sun
Spending warm summer days indoors
Writing frightening verse
To a buck-toothed girl in Luxembourg
NES, SNES, N64, GC, Wii, WiiU, GB, GBC, GBA, DS, 3DS, Mega Drive, Game Gear, PS1, PS2, PSP, XBOX 360, Atari Lynx