It's always annoyed me how overweighted the weapons in the game are so I went through and lowered them a bit because well their is no such thing as a 10 pound steel sword.

Note: I messed up on the screen shots, only weight is changed damage and value are unaffected.

The following weapons and their new weights that I've changed are listed below, as I fix more I'll update the list.

Update: April 14, 2012

Falmer
Sword 3.5
War axe 4
Sword honed 3.5
War axe honed 4

Draugr
Sword 3.5-
Greatsword 8-
Battleaxe 9-
Waraxe 4-

Bows
Glass
Falmer Supple

Update: February 21, 2012:

Glass
Sword 2.5
Greatsword 6.5
Mace 4
Battleaxe 7
Dagger 1
Waraxe 3
Warhammer 8

Bows
Nightingale bow

Misc weapons
Nightengale blade 2.5
Akaviri Katana 2.75
Blade of Woe 1
Dawnbreaker
Imperial sword 3.25


Original release:

Iron
Sword- 4
Greatsword- 9
Mace- 5
Battleaxe- 10
Dagger- 1.5
Waraxe- 4.5
Warhammer- 11


Steel
Sword- 3.5
Greatsword- 8
Mace- 4.5
Battleaxe- 9
Dagger- 1
Waraxe- 4
Warhammer- 10



Skyforge Steel
Sword- 3
Greatsword- 7
Battleaxe- 8
Dagger- 1
Waraxe- 3.5

Silver
Sword- 3
Greatsword- 7


Orcish
Sword- 3.5
Greatsword- 8
Mace- 4.5
Battleaxe- 9
Dagger- 1
Waraxe- 4
Warhammer 10


Elven
Sword- 2.5
Greatsword- 6.5
Mace- 4
Battleaxe- 7
Dagger- 1
Waraxe- 3
Warhammer- 8


Ebony
Sword- 2.5
Greatsword- 6.5
Mace- 4
Battleaxe- 7
Dagger- 1
Waraxe- 3
Warhammer- 8


Dwarven
Sword- 3.5
Greatsword- 7.5
Mace- 4.5
Battleaxe- 7
Dagger- 1
Waraxe- 4
Warhammer- 8


Daedric
Sword- 4
Greatsword- 8.5
Mace- 5
Battleaxe- 9
Dagger- 1
Waraxe- 4.5
Warhammer- 10

Bows- All bows are 3
Imperial
Hunting
Long
Orcish
Elven
Daedric
Draugr
Dwarven
Ebony
Falmer
NordHero