Welcome to Basenotes, leejuan!
If you have access to Chanel, you could also try Pour Monsieur (regular or concentree, whichever is available in P.I.). I personally prefer PM over Egoiste but it's a close call.
As for MI vs. Unforgivable, I don't think it's even a horse race - MI by a mile. The opening may be the nearly identical for both, but the drydown is where Creed pulls out ahead, both in this case and in other side-by-side comparisons.
For "debonair", you might also want to sample Dior Homme, which should be readily available.
Caveat: All of the above are recommendations of a madman. Take them for what they're worth.