The Samsung F5500 LED TV is very good for the price. It has about the same picture quality as the F6300 or FH6030, despite only being a 60Hz TV. If you do not need motion interpolation or 3D and want Smart TV features, you should opt for this TV over those others.
The only downside of the F5500 LED TV is its narrow viewing angle. As soon as you are of axis, discoloration appears. If you need a wide viewing angle, you will be better off with the LG LN5700.