I just noticed that I've voted three times and won Post of the Day twice. ^_^.
Anyways, this is a tough one. Smashville has a basic stage design. It's one large medium sized platform, and one platform floating back and forth, around half the length of the stage. The ledges are small, and diagonal, making them perfect, for even characters with bad recoveries don't have to worry about an awkward return (See FD, PS1). That's good. 75m has many, many platforms, that exact number I'll get later. It also has ladders, fireballs, and well, Donkey Kong. It's Level 2 of Donkey Kong, which in itself, is pretty cool. I honestly doubt recovery is much of a problem here, considering all the platforms that can save you.
Smashville's pretty fun to play on. It's basic design isn't boring to play on because the floating platform adds so many possibilities to the stage. Plus, the background changes depending on the time of day set on your Wii. K.K. Slider on Saturday nights is always fun, and the kids in the back keeping an eye on their favourites is pretty neat. As for 75m, the fun really depends on how you're playing. I can honestly saying playing "war-style" is the only way to truly enjoy this stage. By that, I mean 2v2 with items, and each team keeps to one side, and throws and shoots their items at each other until one team is left standing. Playing at this stage 1v1 standard is somewhat of a bore because of how easy it is to score a kill. Hell, if you're toolazy to kill, justthrow your opponent in DK's direction. He'll be more than glad to finish them off. Geez, Smashville even wins artisticly, surprisingly. I enjoy it's expansive background, something that 75m lacks entirely. Yes, 75m is epic at first sight, but in the end, it's Smashville that keeps the lasting appeal.
My vote is for Smashville, 80:20.
This **** is serious business. XD