A new WNBC/Marist poll (no link available yet) finds New York City residents deem Mike Bloomberg a better mayor than Rudy Giuliani was, and it's by a pretty solid margin, too:

Who do you think has been the better mayor for New York City?

	Bloomberg	Giuliani
All	52%	39%
Democrats	60%	34%
Republicans	41%	50%
Independents	33%	56%

The only ethnic group in which Rudy tops Bloomberg is Latinos, who favor Rudy by a 60%-35% margin.

However, only 36% of New Yorkers want Bloomberg to run for president, compared to 54% who say he should not. And in a three-way race with Hillary Clinton, the city's Democratic inclination still prevails: Hillary 49%, Rudy 22%, Bloomerg 21%.