Long answer: L'Homme and La Nuit are both quality frags and they're both crowd pleasers. Dior Homme and Dior Homme Intense are among my very favorite frags, but they're not for everybody. I own all four, have no regrets and will likely re-up the YSL's when they run dry and as for the Dior Homme line, I've got backups on both DH and DHI, thats how much I dig it. IMHO Dior Homme Sport is also worth a look. It was my surprise go-to frag this summer; I think it saw more action than anything else.
Let us know how it plays out for you.