It would help to know what sort of "parties" you are talking about. I'm going to assume you mean parties as in birthday/holiday/theme parties (not political parties or parties to an agreement or lawsuit).
Les fêtes parfaites (sounds nice - it rhymes!)
Les soirées parfaites
Les boums parfaites (slang, for young people)
you say il est parfait in french to say hes perfect
perfectionner
C'est parfait.
parfait
Pour perfectionner.
timing parfait
Image parfait
les parties du corps
"What if your English is perfect" translated into French is: "Que faire si votre anglais est parfait?"
Kush est parfait
Elle est parfaite
combien d'euro (im 13 and can speak perfect french)