After owning and wearing Tonka Imperiele, I love it and think its one of the most well done, long lasting perfumes I have encountered. But- I really don't find it comparable to NH, I think they are very, very different. With Tonka its all about the vanilla and cedar. NH is just darker, more maple burnt sugar. I think they are both wonderful but I don't consider them similar at all.
I agree, Rochas smells great, but its a bit too subtle for me and didn't seem to last long. Now that I have NH, I can't picture myself reaching for Rochas Man over that when I am in the mood for that kind of scent. New Haarlem also seems to be the fragrance my husband likes and reacts to the most out of anything I own.
Borneo 1834 has always been suggested to me as a gourmand. I don't find it very gourmand like though, personally. Its great- but I get more of a dry, ashy scent than foody. Spicy and lovely though for sure!
Never tried Parfumes 1740 but have just added to my need to try list!! : )