I plan on getting both unless the connectivity between the two versions isn’t really that interesting after all. Or something really goes wrong with the 3DS version.
But I’m a huge, huge, huge Smash Bros. fan. So I might get the 3DS version even if it’s turns out only half as good as the Wii U version.
Fighting Nintendo All-Stars as Sonic the Hedgehog both at home and on the road is a plus enough though~