Vétiver.... I'm very fond of the root, so I can hardly compare only two perfumes !
Guerlain "Vétiver" (the original) is (was?) my all-time favorite.... a beautiful creation, true to Guerlain's savoir faire: fresh start, complex notes evolving to a fantastic tabac/woody scent. The vetiver root is of great quality, from 'La Réunion' where Guerlain had its plants. But the new/revisited Vétiver from Guerlain.... it seems like the original one but it differs a lot, mostly in the subtle evolution of the scent. A true disappointment.
Serge Lutens "Vétiver Oriental". An extraordinary combination of vetiver root with amber and musk. It's a very complex scent, magnificent, woody and oriental. I simply love it.... May not be good for everyday use (it's strong and musky) but it's perfect for special occasions, like all great perfumes are.
Then there is one from Etro. If you were disappointed from the change in the Guerlain "Vétiver", I'll suggest this one. It's close to the original. It's a nice juice but it doesn't evolve much on the skin. I'd say it's good for the office....
Editions de Parfums (F. Malle) "Vétiver Extraordinaire". In my opinion the best vetiver around... It's true to the root, woody and spicy ! Loads of woody extracts, with the vetiver screaming in the middle. Perfect for daily use if you dare something strong !!! I'd say it's a perfect combination with the vetiver from Lutens. This one is woody where the other one is oriental...
Annick Goutal "Vétyver". A disappointment... it smells like the sea... it has a marine note, very strong. It's sad because the vetiver root used in it is of good quality (from Java). Maybe something to use in the summer...
Maître Parfumeur et Gantier "Sur la route du vétiver". Fantastic !!! This is simply amazing: it simply smells like a vetiver root freshly extracted ! It's earthy, humid and woody. The most original and the most true to the root itself. It is very special and not everyone will like it, not a every day scent in my opinion... if you care for the people around you ! But if you like vetiver scents, you'll love this !
Artisan Parfumeur "Vétiver". Not bad, not very exciting. Good for daily use....
Carven "Vetiver". A very old vetiver, hard to find ! It's good but not very special. I'd say it's for a daily use if you like something more conventional.
Creed "Vetiver". Again, a conventional vetiver, with marine notes.
There are a few more around, Lanvin, Azzaro but in my opinion, not worth a test or a comparison...
So in short... Try the combination/rotation Malle Lutens and MPG !