Those are good choices. I think Philosykos is foolproof, but that's because I like it so much. No, not entirely. It's foolproof because it is the most likely winner for men out of the whole line. Very good choice.
Tam Dao is also spectacular, but it took longer for me to understand it and be impressed by it. Now it knocks me out and I won't be without it, but at the same time I can see and understand that it's on the edge and that you or anyone might not like it.
Same can be said about all the scents from Diptyque, I guess, maybe more so than other lines. Opôné is another one I think you should consider. Rose and saffron on some kind of light woody base. One of my super super favorites that sold itself to me at the very first sniff. A scent I exactly, exactly liked. Don't know if you'll feel that way, but it's another of the close to sure winners when I think of the Diptyque line up. Another is L'Ombre dans l'Eau. But since it's also a rose scent, you have to be into the that slice of the scent experience. If woods are more your thing, Tam Dao is one of the stronger bets for sure.