That being said, I chose European swords. From what i've seen at museums in Canada and the States it looks as if asian weapons are a lot thinner. European weapons aren't very ergonomic in that sense, but they're big and somewhat regal, while asian weapons are intricate and ornate.
Ergonomics are important, and really could be the difference between life and death; but Japanese and European martial arts are somewhat different. In terms of weight they're broadly similar, and for European swords things like the point of balance and the point of percussion are very important matters. As a beginner to collecting swords I had little appreciation of such things and tended to think that very light blades felt better, but over time I've come to appreciate things where the centre of gravity is a few inches along the blade; though I should point out that I'm still saying that as someone who has absolutely no experience of swordplay of any sort.
One thing that people often fail to realise is that European swords really do
not weigh in the order of 60 lbs: though the units of encumbrance in the likes of Oblivion weren't in pounds anyway (more an arbitrary measure of something's awkwardness to carry) a lot of people still think that they're an accurate representation, but a normal European sword will typically weigh 2-4 lbs (about 1-2.5 kg) and not only would it be impossible to wield something weighing several stone, it would probably be physically impossible to even make a normal-size sword as heavy as that!