Give FINAL VERDICT on which CAMERA to buy among these?
I'm really confused by head-storming reviews with pros and cons of these cameras, so after eliminating others, finally I've come to choose these three:
You will get so many differing answers here that you'll be even more confused! Personally, I would go for the Canon. I have always used Canon and found them to be well built, reliable and easy to use.
Out of those 3 the Canon is easily best and the Nikon is the worst, but for a bridge camera I'd be looking at Fujifilm as they are much better value for money and have the best viewfinders. http://snapsort.com/compare/Canon-PowerShot-SX50-HS-vs-Sony-Cyber-Shot-DSC-HX300 http://snapsort.com/compare/Canon-PowerShot-SX50-HS-vs-Nikon-P510
The one you should have got, and still can at a great price as it has just been discontinued, is the Fuji HS50 EXR. You could get bird photos like these from it: http://www.flickr.com/search/?q=Fuji+HS50
Otherwise get the Canon SX50... you are already familiar with the Canon layout and menu structures.