My major complaint about the virtual console isn't the pace of releases but the quality of the emulation.
The Wii U is much better than the Wii, but it still displays every SNES and NES game wrong:
For whatever reason, the NES and SNES had an internal aspect ratio of 8:7 (224x256). Because this is narrower than 4:3, the image had to be stretched to be displayed on a CRT, so the original systems always displayed a wider, distorted image. This is obvious when looking at circles and squares, which turn into ovals and rectangles.
Some of the SNES games ported to the GBA, like A Link to the Past, Super Mario World, and Yoshi's Island corrected this by displaying in the native 8:7. Nintendo had an easy chance to fix this again with the Wii VC, but for whatever reason didn't. The games were emulated to stretch to 4:3 still. They didn't fix it with the Wii U, either.
It's pretty bad with Metroid, since the morph ball logically shouldn't even be able to roll without wobbling all over. Zero Mission and Fusion both display the morph ball as a perfect circle, and Super Metroid also does when set to 8:7 in an emulator. Clearly, that's how it's supposed to look. On Wii U, however, it's a distorted oval:
This is the kind of thing that unofficial emulators on PC tend to solve easily by providing enough image options and enhancements to overcome almost any of the original hardware's limitations. Nintendo seems to want to avoid this sort of thing to keep the experience simple and user-friendly, but it prevents them from ever hoping to match the emulation quality of playing on PC.
The GBA VC at least took a step in the right direction with filtering and integer scaling options, but it still feels a little minimal compared to PC. If Nintendo were to offer at least integer scaling and 8:7 aspect options for the NES and SNES I may come back to Wii U to play them there, but for now SNES9x is so much better I can't go back to my VC versions.
