IMHO, this thread seems set-up from the start to showcase the "superiority" of Thor--and I gotta admit, according to that link, he's very, very, very impressive, if not a step away from being "all-powerful" (I wonder why Marvel went in this direction). And I certainly would Not agree that Thor's powers are impractical. It's just that, well, my thoughts are as follows...
Thor seems so powerful that there would be little challenge left for me in life, thus life would get boring. I mean, why not just ask "Wouldn't you want to be all-powerful?" What makes life interesting is Mystery: not always knowing, realizing that there is still something bigger than I am, despite my new-found godly abilities. If I am nigh omnipotent, what is left to strive for?
Superman seems to allow for a more fulfilling balance between being able to do and still having challenges.
And speaking of having challenge and potential yet to fill, didnt DC run something having to do with the Sword of Superman, and that he is destined to be the protector not just of Earth, but of the whole blinkin' Universe? Now That's what I call a challenge!
Also--and I can't help it, I admit to this bias and apologize--Superman has something that Thor will likely never have: real-world power, the power of being an inspiring icon known throughout the world. As I wrote once before, Supes transcends the superhero genre: he is the modern incarnation of all that is Good and Noble in each and every one of us. If I were to gain superpowers (anyone's powers), I would hope more than anything that I could offer that kind of inspiration.
My only regret: Lord O'mighty, cant we do something about that costume of his? At the least, nix the red swimming trunks!