I was once impressed by a fan video that used The Moody Blues' "I Know You're Out There Somewhere".
I went through my extensive music library and checked out the song, but - although I like it very much as such - there's nothing
Star Trek in it (however, you can just as well argue where's the
Star Trek in the theme song they actually did). Furthermore, it's simply too 1988 and doesn't have this timeless quality that even
Faith of the Heart has.
Had there been a 5th Season (or even a change for it's final episodes), I would quite liked to have Archer's Theme with Bakula narration. Star Trek.com originated the idea and I once put together an alternate version of it, see my signature. They could then restore the Faith instrumental used for the End Credits in Broken Bow.
I, too, thought that
Enterprise - even more than, for example,
Voyager - deserved an epic main title theme. Heck, the entire concept of the
Voyager intro, including theme song, would have been suited better to
Enterprise... with all the loneliness of space and the sense of longing and adventure. As it is, it was wasted on the mediocrity that
Voyager turned out to be (don't get me wrong -
Enterprise could have been much better and more faithful to... well... the canon, starting with projectile weapons and nuclear missiles, for example). Nevertheless, the stuff in your signature is quite good, as well.