What's the Most Realistic Artificial Gravity in Sci-Fi?

2001: A Space Odyssey introduced a lot of people to the idea of rotation based artificial gravity, but in sci-fi, it’s far from the only one to implement the idea! Babylon 5, Halo, and Ringworld also used rotation-based artificial gravity in their stores, but, being an astrophysicist I had to ask, WHO DOES IT BEST? And more importantly, is artificial gravity in space possible? And I’m talking outside of your artificial gravity in Kerbal Space Program (but we may get there)