There isn't a dramatical difference between two teams. I would never bet against Porto if Andre Villas-Boas was still in charge but he left Porto and he's Chelsea's coach now.
Hulk is a major threat but Porto sux. If they can't beat Apoel at Portugal, how they will beat on the road?
Teams like Apoel are very dangerous at home. And they're a very unknown team, underrated by bookies.
These kind of teams always play with a great ambition specially when playing at home.
Even if they can't win, I don't think they will lose. Expecting a score like 2-1 or 1-1 here. Good luck!
Pick: Apoel +0.50 @ 2.06
