That's a nearly impossible one to choose from - they are so different. I could see picking between two very similar scents, like two similar vetiver interpretations, but TdH is not in the same family as Sycomore. There may be some vetiver in it, but the overall scent is vastly different from Sycomore. It would be more appropriate to do Sycomore vs Encre Noir poll - alas, that one has already been done to death a number of times :-)
Own and like both, for different moods and different occasions, so I'll refrain from voting as both are a staple in my collection that I use frequently. TdH gets more compliments from others. Sycomore is more for my own enjoyment.