I agree with your initial assessment of The One by D&G - it was exactly like mine. I was almost shocked that D&G would create such a weak and insipid thing. But by the time I got to the end of the sample they gave me, I was in love with that strange, wimpy fragrance - as was my wife. All I can tell you is that - for me, at least - it's wonderful on skin when sniffed at a distance of 0 mm. I can apply it like water, and it still has almost no sillage. But worn in intimate situations, it's a wonderful scent. I use it for two situations: SotD when I can't have any sillage, or SotN. Is it worth the price? Unless it works with your skin, probably not. But it's worth a free sample to check it out.
Thanks for the reviews on the others. The Penhaligon's looks very attractive. And "Herban Cowboy" is just too cute - I've gotta try it!