The exception is Skyrim, where if i play a Sneaky character or a Warrior type then i use two weapons...namely a melee weapon and a bow. And with the warrior type i actually only use a bow against enemies that i can not reach easily at first, like enemies that try to stay out of melee reach and Dragons.

And the weapons i use with my current character are a Two hander from Berserk, not the huge one, but the sword Guts has when he joins Griffiths Band of the Hawk. And the Doomshard bow, and both weapons are bigger then the vanilla weapons...so it would look weird if my character would have both weapons equipped.
