I don't really have favorites at all so ill comment on the ones in this thread and add some at the end:
Transformers franchise: I enjoy them as good action movies. I don't go see them for the story and if don't get offended when they change things from canon/childhood.
Canon/Remake controversy: I don't mind it really. It's hard to get super upset over someone telling a different version of a fictional story.
Kevin Costner/Waterworld: I actually really enjoy Waterworld, it's a good film. It's not great but it gets undue credit for being the "worst movie of all time" when really it should only be credited for "most over budget film of all time". It was and still is famous for that but behind that, it's actually in interesting story and something I enjoyed. Also a big fan of The Postman.
Horror in general: no. Just doesn't do it for me. Psychological horror I do enjoy (movies like Saw, The Cube, Shutter Island) because I feel like they maintain a grasp on reality that regular horror doesn't. Ghosts, zombies and paranormal anything is just meh.
Avatar: was alright. Overhyped because of 3D but watchable at least.
Prometheus: I really enjoyed this. It was a good sci-fi flick and thought it played out nicely. I haven't seen original aliens or anything so I don't really have anything against them for sortofbutnotreally trying to make a prequel.
Fight Club I really didn't find that compelling, interesting or worth the cult following it's garnered to date. Guess I'm in the minority for the most part.
Jurassic Park and ID4 were fantastic movies for their time and still hold up well with age.
I'm a sucker for RomComs/chick flicks, He's Just Not That Into You is awesome. Also a huge fan of 13 Going on 30 and Bridesmaids.
Inception was very, very well done. Loved it.
Some things I thought of while typing responses:
I absolutely love the Riddick series. All of them are fantastic although the second one gets some negative criticism but I like that it tried to create a universe to give the story more depth. The first one is a fantastic, fantastic film that was poorly marketed at the time as a horror/scare film and I feel it would have done much much better just marketed as a sci-fi film. I'm super excited that Vin Diesel owns the franchise now because he's very passionate about it and I love that about him.
Speaking of Vin, I'm an absolute sucker for anything he's in. Fast and Furious movies are my guilty pleasure and I'm not afraid to admit it.
Of late, Gravity was an absolutely breathtaking film and a spectacle to see in theaters. Sure, there were some inaccuracies and such but i was blown away by it the whole time
I love a lot of 80s classics too. Tom Cruise's films at the time are legendary. Top Gun, Cocktail (Coughlins Laws are laws to live by!). Sixteen Candles, Breakfast Club.
Also, absolutely anything with John Cusack.
Before anyone else mentions it, too, I'm gonna stir the pot a little and say that Quentin Tarantino and every movie his ever done are steaming piles of shit. I hate him with a passion and him and his movies are overrated in my opinion. They are nothing more than shock films that follow the same basic, repetitive bs every time. Pulp Fiction was fine but after that every movie he's done has been the same thing with a new theme. He is the most unoriginal director of all time and an asshole on top of it. /rant.