1.Star Wars Original Trilogy
2.Indiana Jones Trilogy
3.Back to the Future Trilogy
4.Lord of the Rings Trilogy (I know only one of them has been released but after seeing and loving the first I know the next two will be just as good)
5.Karate Kid Trilogy (not counting that STUPID Next Karate Kid, I don't even think of that as a Karate Kid movie)
Opps, make that top 6 I forgot the Jurassic Park Trilogy.