I have to vehemently disagree with Los Angeles being there. The city is shrinking drastically (at least the tax base). Business taxes are huge, roads are in disrepair, housing prices are still enormous, and no new businesses are starting up here. The loony state legislature in combination with the loopy city council have created a vortex of despair, and until something big changes politically, this city is going to hell. The Global Warming Final Solutions Act may be the final nail in the coffin. Rent control, out of control public works (I once heard that about 40% of the city works for some kind of government agency), depleted investment in transportation, a broken water and electric grid, race instability (though you won't hear it from the news, you'd know it if you lived here), etc. I love this city, but this government is killing it slowly but surely.