When i say M rated games i just use that as an example for most of the games I like, and i could care less about bieng cool cause everyone told me not a Wii but i bought it cause i loved the smash series and i played smash since i was 3.
Ha! Nice to feel vindicated! In that case, good for you, and you are definitely not alone in either your taste (I like many M-rated games too) or your worries about WiiU. Nintendo has a lot to prove... but I think that they will prove it. It will be HARD for them to mess up. Again, though, if you are falling in love with some exclusives on another system, there's no substitute for games you really like. Go with the system that has the games you like!