My favorite city in the whole world would have to be somewhere close by. Maybe walking distance or even a good commute like a train ride. The sun wont be too hot, unlike the place where i normally live. In short the whole city is a utopia. I've discovered many thrills in each city but this city should be liveable. You would love waking up in this place and finding yourself out to adveture in the day of the city. You would also find yourself properly tired come evening and you would do it again the next day. That day would include polite and friendly people who live in this compact city. Albeit futuristic and also a bit traditional and naturalistic, all of course with a good balance. You could hop by the beach or swing by the mall, and at the evenings : somewher bright and neat if you dont feel like sleeping. This city of course wasn't built in a day, considering its rich history atop the ground you walk on. There is great acceptance of many cultures and races and a resounding diversity among its citizens: united we stand and divided we fall. They stood by something in their lives which heaven can be proud of. Here the people treat everyone as equals.
You can reach it by travelling on your car if you're afraid to fly, after all the roads have been building for more than 2000 years.