I've seen quiet a lot of movies because I very much enjoy watching movies. So it's going to be a tough one choosing which movie has been the best so far for me. I think i'll go by a few genres and pick those which I believe are close to being the best.
Adventure movies can be very thrilling given the complete setting of any which usually is set in ancient times, a time that's very much fascinating to me. I always wondered how people live their lives back then. And asides that, a lot of history, actual history can be picked up from these kinds of movies. Lord of the rings and Game of thrones series happens to be my two favorite adventure movies. Everything seems perfect in these two films, not a single mistake can be pointed out in any scene as regards to material and objects used to match the portrayed time. I mean, the amount of work put into making these two films are just effortless bringing forth an overwhelming result. I don't see any movie breaking their records anytime soon.
When it comes to sci-fi, i think Cloverfield Paradox will take the spot of best for me. It's a movie set in a future Earth where our sun happens to be dying in some way and science came up with a solution. The solution involved astronauts traveling to space to launch a man made energy which is suppose to revive the dying sun. In the process during a hyper jump, the astronauts mistakenly jump into a parallel universe where they found another earth with the same people as us, only that it was a different world. They got stuck but ried hard and finally returned to our world. In doing so, they came along with them a new threat that could destroy the entire world, more of like a consequence for making direct contact with a different world. I kind of like science theories and this is why I love this movie because it talks about the highly debated existence of a parallel universe, which I believe in the possibilities.