GHOD, Amouage fragrances have been discussed extensively on this board. Do a search and you'll find a wealth of information.
Here's the common consensus:
Gold: Johnson's Baby Power
Silver Crystal: Probably the best, unbelievably powerful and I think recently discontinued?
Dia & Ciel: Beautiful, medium to poor duration and very expensive.
There's also a new one out that I'm not familiar with but has also been discussed a lot recently. Seems to me it was their "Cool Water" attempt.