Orlando real estate advice?

Hi, I'm currently house-hunting in Orlando. I am not too familiar with the city though, all I know is that Orlando is pretty much split by route 4 and 408 and the downtown area is the area to the immediate north-east of the intersection of 4 and 408. Could all the Orlando experts on here please describe Orlando from a geographic/demographic perspective for each of the 4 quadrants? (north-east, south-east, north-west, south-west)? What are the most sought-after places? Which places should I avoid at all costs?