Persolaise presented his top 10 sandalwoods last year!
And I have to agree (although I'm not much of a fan of Tom Ford's Private Blend line),
Santal Blush is really, really quite something. Ridiculously expensive, like the rest of the line, but I do find it great.
The Lutens versions
Santal de Mysore and
Santal majuscule are beautiful but they tend to have a touch of culinary - strong curry in Mysore, and a hint of cocoa in Majuscule (this one seems to be quite popular, as the treatment of the sandalwood is soft and cosy.)
Santal blanc used to be milky/soft, but when it was moved to the (fresh line) Eaux de Politesse, it's turned into a fresh, airy clean-white-musk sandalwood, with a dash of spices.
Guerlain
Samsara Eau de Parfum used to be The Sandalwood, but the current versions are quite different from what it was at launch, it seems to be polarizing now, with the fan-team and the ewww-team. They also have a
Santal Royal Eau de Parfum; I can't remember it at all, but it might well be worth a try?
Le Labo
Santal 33 Eau de Parfum is indeed mega popular, at one point half of New York was wearing it (can't say much, it's been too long I tried it).
Diptyque
Tam Dao Eau de Toilette is also much much liked it seems; the sandalwood is interlaced with other woods like cedar and cypress - this one sounds like it could really fit your bill, as it's often felt as meditative, peaceful and deep.
And then the airy, abstract, dry and deliberately synthetic (to a great effect, I find) Comme des Garçons.
@Nimurai: I love
Wonderwood but I never paid attention to a sandalwood note in there. What do you think of
Concrete? I've never tried it but it's supposed to be built around sandalwood - and take it apart, removing the milky, soft, silky parts of the note and contrasting it with an urban smell of, well, concrete. It sounds interesting!