The best visual effects can be found in the Hulk vs. Hulkbuster battle of Avengers: Age of Ultron. Runner-up is the title character of Chappie. The greatest spectacle is Jurassic World, whose visual effects aren't shabby either.
My favorite performance is that of Benedict Wong in The Martian, while my favorite villain is Scarlet, the lead villain of Minions. That movie also boasts best visual design. My favorite character is Ultron, the lead villain in Avengers: Age of Ultron. The most desirable gal is Sonoya Mizuno in Ex Machina, which also happens to have the best dialog.