I live on the south coast (Southampton). This is not a bad area to live, the New Forest is close at hand, although living in a more rural area is considered a luxury down here and therefore costs money. Bournmouth and Winchester are ok too. I don't subscibe to football rivalry, but I don't like Portsmouth that much, although I'm sure it has it's nice bits.
London is only 70 miles away, which is good for day trips.
I'm not sure on the northern mortality rate, but I'm not aware of any particular hatred. Of course if may just be that all northerners are dead before they get down this far... :)
Oh, and the climate is a little warmer too.