Hmmmm... it's kind of difficult to pick out ten and rank them. I will just mention some that I really like, until I get to ten!
The Shoyeido premium line--who doesn't like these? However, Sho Kaku is not something you can enjoy every day. A nice compromise is Misho Gentle Smile, reasonable price, very good and distinctively Shoyeido smell. You can get something similar in the Horin line--the top end Tenpyo and the more reasonable Genroku, which I like almost as well. Another favorite Shoyeido is Sei Fu--a nice 'agarwood-type' (maybe very little of the actual stuff, but a nice impression anyway). I also like the Incense Road line, but I will try to keep this list to more traditional types.
In the Gyokushodo Kaori no Sho line, I like the one right in the middle, Nami no Sho (Waves), a small amount of agarwood amplified with something like deer musk, very rich. I have had a sampler of this line, and there are others I like, but have not bought boxes yet.
From Baieido, I had some trouble with the premium Sho Kun--maybe I am anosmic to it--it seemed too light. I like the Jinkoya Sakubei line better--even going down a notch to the Horyu Koh. I am also a fan of Kai Un Koh.
The Tennendo En Kuu Horizon is a very satisfying high-end agarwood, basically traditional but with a spicy licorice accent. From Kyukyodo, I have enjoyed Sho Bai Koh and also Kinbato, which is not that far away from the much more expensive Murasaki.
How about Kunmeido's Reiryokoh? Very distinctive, with fenugreek. Imagining this in use at a dark, ancient Zen temple makes it seem deep and exotic.
There are so many more, but anyway, here are the first ten that came to mind.