Those look to fancy to actually use in a fight
TES tries to make their weapons realistic/practical. And I am VERY thankful for that.
Most of the time at least. But the size of the warhammers in Oblivion (http://images.uesp.net/5/53/OB-items-Warhammers.jpg) are almost insane and several other weapons throughout the series have been very bulkular, but I think they've gotten better at the Warhammers especially in Skyrim, even though things like the iron mace are a bit oversized still. But even though I prefer somewhat realistic gear, I'm willing to give them some leeway thanks to it being a fantasy game in the end.
found a video with mount and blade weaponry and combat
http://www.youtube.com/watch?v=5t32gbPbgxc
lightyears better than skyrim. only thing that the MB weapons would need would be better textures since they are a bit low rez.
Mount & Blade really is a great game and a beloved favorite of mine, but I'm reluctant to compare them too much. Some things can be learned from it, but in the end the gameplay is pretty different. M&B is more like a war simulator, even though it's an RPG, while ES games are a lot deeper when it comes to the world as a whole. Had you aimed for M&B styled combat in Skyrim you would have to dumb down the AI and tune down the graphics. Also, fighting a battle in the open in M&B gives you a randomly generated battlefield, while the terrain in Skyrim is tailored to hold entraces to dungeons and the likes, and horse combat would be limited to a few relatively open areas.
Edit: Forgot to mention that I'm with Dust to some extent. I wouldn't mind some more diversity when it comes to arms. I don't care much for katanas and similar weapons, but shortswords, falchions, morning stars etc in varying formats would spice things up a bit.