The Voyage Home is my favorite too! More than any other Star Trek movie, I remember the details of the story and the characters, years and years after watching the movie. Also, whales are cool, the humor was fun but not cheesy, and Kirk and Spock had great chemistry.
I like the reboots just fine, and I especially like Chris Pine as Kirk, but I found the stories more forgettable. Also, and perhaps this is because I was a fan of the original cast, sometimes it felt like I was watching beautiful actors cosplaying as the original cast, instead of them embodying those characters. The new movies have a kind of Disneyeque cleanness to the way they're shot. It's all very pretty, but the stories feel less real to me.
Still, any day with Star Trek is a good day, in my opinion. I've enjoyed everything they've ever put out, maybe except for that weird episode of Voyager where Janeway and Chitokay turned into slug aliens and had slug babies together. That was... odd to say the least.