Features
]http://farm3.static.flickr.com/2751/4256186047_06598c9828.jpg
I never understood why this was the image that popped into people's heads when they thought 'Nord'. The nose looks almost alien.
I've always played Imperial, purely because it just feels the most natural for obvious reasons, and also the fact that I don't feel like spending the whole game as a midget Dunmer with a height inferiority complex, but I've always been annoyed by the fact that as an Imperial it means I am by default a lot smaller than my Nord brothers, when they are both the closest related races to each other in the game.
Different heights for the same race?
To me the perfect thing would be for not all characters to be the same height. You could have two Nords, one 6'0 and the other 6'3. This would take away this problem of being an Imperial, walking through Skyrim and feeling more like the short kid and not the epic hero you're meant to feel like. At the same time, it would be nice If there was an option when creating your character to change the height of he/she. That way you could have an Imperial, who as the standard 'normal human' of the game, could be 5'9 or 6'4, to create a more realistic feel.
These are just some of my thoughts anyway.