I love Metroid, I love Rhythm Heaven, I like Wario Ware and some other crazy things from them.
Part of it is that I HATE Mario as a character, and that kind of taints any games he's in for me. I used to love Zelda, but in the switch from 2D to 3D, I now just don't like the series for some reason.
I'm not the type who says their games suck-I think they make excellent games. Just, for one reason or another, most of their offerings just don't click with me, so I have a weird relationship with their systems. I tend to love their handhelds, but even though I've bought every one of their consoles, I've owned less than 10 games total for everything since the NES. (I went from NES to Genesis, and that was point of no return for me I think.)