As it is against Predator law to allow a Predalien to be birthed, No, they wouldn't side with Predaliens. I have to say though, why would they? They are the property, so the speak, of the hive the 'hugger came from, so they would be naturally drawn to being with their fellow hive members.
In simple words, if you were in say... Somalia (Just an example), would you go to the house of *insert your birth country* peace keeping soldeirs, or te homes of what appear to be angry, *insert your birth country* hating, AK-47 weilding Millita members? You would go the *insert your birth country* Peace keeper's house.
Zombie to English/english to zombie translator http://www.siddhant.name/games/ud/english2zombie.html