Please excuse the gameRevolution review team, most of whom are 360/Ps3 graphics fan boys (as witnessed by their delayed posting of the Metroid Prime 3 review while even Lair gets higher priority for them).
Graphics: I dont know what the GR team are seeing, but what I see looks pretty damn good. The geometry isn't as complex as in titles like Bioshock, but the artistic design more than makes up for it. Bloom lighting is everywhere and expertly utilized, textures have vastly improved over the already impressive MP1 and MP:Echoes, and the fluidity...the fluidity! Everything moves at a blazin' fast 60 frames per second. I dont see any normal mapping, but thats a good thing (I am not a fan of the plasticky glossy look). Eitherways, with rock solid geometry, out of this world level architecture, supremely impressive bloom lighting, and amazing attention to detail, his is definitely one of the most graphically impressive titles out there, 360/PS3 included.
Sound: Speech! finally, the metroid world speaks and its competently handled, lending a more cinematic feel to the game. The music is a mix of new CD-quality tracks, and moody midi-type music as in the previous titles.
Gameplay: The brain teasing puzzles are back, but this time the backtracking isn't as cumbersome..and thats a good thing! The controls are what make the game though ..play it on the expert/Advanced setting, and you will see why people call this the best fps control set up on console. You can lock onto items and enemies like before, but now you can also use the wiimote to aim while locked on, lending extra flexibility to the control/aiming system. The boss fights are superb, and almost all require tricky patterns and nuances to figure out. Some may argue that the "Phazon" mode can probably make the game a bit easy than it needs to be, but the puzzle and adventure elements take care of that.
Overall, MP3 is contains everything that I would hope for in a sequel. Superb improved graphics, retooled controls, expansive and more accessible gameplay dripping with atmosphere. I own all three console, and I can easily say that Metroid Prime 3 is as impressive as Bioshock, but with better controls. Don't let some graphics whore stop you from playing this impressive game.