While we're at it warhammers should be only used to finish off enemies on the ground. While we're at it sabers should be only used on horsebacks. While we're at it there shouldn't be weapon and armor made out of glass...
Off-topic and nitpicky point, I apologise, but sabres were not only used by cavalry. For example, the officers and sergeants in the 95th regiment of foot, The Rifles, often carried sabres.
As for on-topic - the plastic texture is common to this generation of consoles, as pointed out earlier in the thread. Low poly mesh with too much normal mapping painted on top. It'd look better if it was toned down.
Whilst the ES games are set in their own fantasy world, where feats of amazing skill and strength which would be impossible on Earth are written about, I feel it is nice to have a basis in the sensible. Whilst such feats are possible (like climbing the stairs of a tower doing a handstand wearing full plate armour if I remember the story correctly), not everyone in the world is capable of doing them. I remember a rather large hammer in Morrowind with an encumbrance so high that it was neigh impossible to pick up and still be able to move, and I think the great, oversized hammers should follow suite. Like the old game Severance: Blade of Darkness, perhaps only characters with a high enough strength stat should be able to wield the warhammers with any skill - everyone else slowly flailing them around.
The sword blades however, really should not be as thick as the Elven longsword blade. That really looked odd.
The oddest thing, I feel, about the oversized weapons though is that no footwork was involved in swinging them. All the motion was from the shoulders and arms, when heavy weapons generally should need stance changes and a lot of core movement to get a good swing - old claymores for example.