Will the WiiU ever prove itself more powerful than PS3 and X360? Or maybe a better question is, can the WiiU ever prove itself more powerful than PS3 and X360? It is very difficult, impossible even, to look at a WiiU game and say, "The Xbox360 and PS3 could never have done that." I mean for all we know NintendoLand could already be beyond what the HD Twins are capable of. It doesn't appear that way as an outside observer, but without having actually developed the game and without knowledge of what is going on under the hood, we can't say for sure.
Graphics are very subjective as well, and this can be seen by the way people are viewing games like Nintendo Land. Many seem to take the opinion that Nintendo Land is less demanding hardware-wise because it has a cartoon-ish art direction. In reality however, the game is 720@60p, with a number of the mini games rendering a separate framebuffer to the pad, while sometimes rendering split-screen on the main display, and having a mix of realtime and baked shadows and decent texture filtering. (In the final game shadows seem to have even been up'ed in res. since early builds, or at least filtered better) This is not likely out of the reach of the PS3 or 360, but definitely not worthy of comments like, "How could this possibly not be in 1080p!"