Super Mario Galaxy? Metroid Prime 3? Endless Ocean?
Are you kidding?
No way they belong to nice graphics - bad gameplay category. Someone, please, tell me this is just a joke!

 There is definitely fault at gameplay, Mostly from the fact there's only 1 option to interact with the animals. (by rubbing them). Lack of reaction from all the creatures and the fact you can't interact with them more than just 'rubbing' makes you wonder what it could've been.

 If you want to look at pretty things, go buy Planet Earth. When I have a game, I expect a bit more 'interaction' with it. 

I would say Motorstorm using the SIX-AXIS.....But without the SIX-AXIS, it was fine...

Since when does the rubbing of fishes determines good or bad gameplay? What a strange way of justification!!! Endless Ocean is not exactly a video game to be judged by the rubbings you do.

 I do not understand this either, I loved the gameplay in SMG and MP3.  I have not gotten EO, but plan to later on.  Just people's opinions, but I was expecting something more from this then what we are getting so far.

Doom 3, anyone? A phenomenally pretty game when it came out, and the Xbox version even pushed that system to its limits. But the gameplay basically amounted to, "Oh, look, a closet; I wonder if it has a monster in it."

Halo 3.

Great graphics, but a god awful story/single-player mode can only be masked so much by a good multiplayer mode. we already did that in Halo 2, so the single player looked so much worse in Halo 3 once we caught on to Bungie's trick of giving us shit for SP and greatness for MP.

Ooh, another one:

Zelda (Wii) yes
Zelda (Gamecube) no

Look at the posting histories of those suggesting said games kazadoom and clapiotis, and all queries shall be answered.

Games like UT3, Heavenly Sword and Motorstorm IMO offer interesting and pretty good gameplay experiences in addition to good graphics.

For some games like Condemned (360), Rumble Roses (360) and Genji2 (PS3) these seemed to provide more graphical push than gameplay push.

But generally speaking the best games also seem to receive relatively good graphical polish. Like Mario Galaxy (for Wii standards), Uncharted (PS3), Kameo (360), etc. Certainly bad graphics don't assure good gameplay nor vice versa, I am sure the bulk of the top 100 worst games also provide horrible graphics.

Wii Sports with good graphics for instance in the style of Everybody's Golf wouldn't make the game any worse, it would actually add to the experience. Similarly the core gameplay of Pacman was good, but for instance improved versions like the one by Edgar M Vigdal Deluxe Pocmon with all its bells and whistles IMO offers a far more enjoyable experience. Pacman on the Atari 2600 was horrible, also due to its graphics compared to the arcade version.