As Janesy has stated the difference between the FZ200 and the rest is night and day.
Ignore the marketing garbage that the companies pedal to try and sell the cameras, they don't tell anything like the full story.
On the miniature sensors that bridge cameras have keeping the ISO as low as possible is absolutely crucial to retain anything like decent image quality.
Also at the stupidly ridiculous zooms that bridge cameras offer keeping the shutter as fast as possible is also crucial to avoid camera shake, both of these mean getting as much light to sensor as possible.
As I stated previously the SX50 is already at f5.6 at 180mm, which means the FZ200 can let FOUR times more light in at 600mm than the SX50 at 180mm, at 600mm the SX50 is at f6.3 and the FZ200 is letting FIVE times more light in.
Honestly their is no consideration or competition if the FZ200 falls into your budget.