Here they are:
I find the render graphics interesting as it seems like a "realistic cartoon" but there may be those who prefer the original WW aesthetics. (i.e. non-transparent water, single-color textures, origami-style vegetation, ect.)
The WiiU remake seems to have more vibrant colors, sharper lighting and added bloom, which will appeal to some but not to others.
And the Dolphin version looks the sharpest and most "clear" but it's quite clear that the game was initially not intended to be run in such high resolutions.
So which looks the best?
edit: each version has two pics in order.