PSD4 is quite strong, and I don't think it would match well with a beginner's palate. I may be wrong, but who knows. Montecristo #4 was mentioned, and I think this is a good choice. Mellow but loaded with flavor. Another good choice might be San Cristobal.
Personally, I'd buy them a box of plugged Cohiba ISOMs just to show them that you smoke the cigar, not the band 😉