Sheesh, first off, hotter is not always better. Take the best place in existance, Minnesota, for example, it's nice and warm sometimes, nice and hot sometimes, nice and cool sometimes and nice and cold sometimes. We've got warm climate but we got variety.
Additionally, there are places in the Northern hemiphere that are hot all the time, like the Sahara, which is way hotter!
As for longer coastline, who cares? That's what all the little nations below the U.S. like Mexico and the Bahamas are for! The Northern Hemiphere has far more coastline then the Southern.
Most people in Minnesota are nice, too.