It's hard to compare cities in which I've lived with cities in which I've ridden while visiting. Route planning is key to a good urban cycling experience, and being local typically allows better route planning. I love riding in my current city, but much of that enjoyment comes from my familiarity with the roads and knowing the most bike appropriate routes to get from here to there. If I were passing through the city on tour, or just visiting the city, those aren't the roads I'd be riding on.