Well what you just did was give an extremely personal point of view. I don't see where are you going with it or tell you besides an "ok, whatever" answer.
You don't like nintendo games? then I don't see why you should buy the wii or even like it. Nintendo games are the core of Nintendo systems. Take it or leave it.
About the lazyness from the 3d parties...well it has been discussed here and everywhere ad nauseaum. The 3d parties became lazy, spoiled and elitist and they forgot what videogames are really made about (hint: NOT GRAPHICS).
There are very good 3d party games but it seems that you want M rated hardcore stuff. There are mature games on the wii but seeing your post I don't think you'll like it.
Bottomline: don't suffer and keep your PS3.
And I am a wii lover yeah, but each people should buy the console it fits better.
