I believe AC Milan will return to glory before Inter Milan, although I think they will both have success. The two rivals are both exceptional clubs. AC Milan has always been a better team. Some say AC Milan is the fourth most successful team in the world.
Even though Inter Milan has more money, the players on AC Milan are more powerful and skilled. AC Milan players are hungrier for a win. They also have better coaching and more support from their fans. There is no doubt in my mind that AC Milan will rise to the top once more.