Which city is better, Osaka or Kyoto?

Question:

What are their main differences?

Answer:

Question is subjective, I don't think there is any "better" city, and both places are extremely close to each other. You can take the train between the two cities in under 30minutes.

Kyoto is a very historical city, with a lot of historical sights (it was spared bombing during WW2). It is also a city as well with a modern futuristic train station, and downtown shopping.

Osaka is a more of a modern city, more entertainment, more shopping, food, "city" things you would expect any major international city to have.