dSLR and SLR are not the same.
in 2013 and beyond, you only need concern yourself with dSLRs. SLRs are film cameras.
avoid the SX50, it's junk. And that's not a knock against Canon. Avoid any camera like this, from any camera maker. It uses a tiny, cheap image sensor, the same as any cheap tiny digital camera.
If you want great looking images you need the right gear, but don't expect miracles. No matter how great your camera is, if you just plan on putting it in AUTO mode, and clicking away, without taking the time to learn some photography basics, you will end up being let down.
So when shopping for a camera, if you really value high quality images you are going to be looking at two types of camera, dSLRs and mirrorless cameras, they are a more compact type camera.
Shop based on the size of the image sensor (bigger is better) within your budget. Ignore megapixels, zoom numbers and gimmicks like photo filters, WiFi, and anything else you can think of. They are fine to have, but they do zero to add to image quality.
If you don't plan on making money in photography, and you don't shoot action like sports, I'd say skip the dSLR and get a mirrorless camera like a Sony NEX 3N, 5T, or micro four thirds from Panasonic or Olympus.
If you want a certain look to your photos, you can always create that quickly at home, often with free software from Google like Picasa, or PicMonkey.
One last thing about reviews on the SX50, who do you think is writing those reviews? They are just the common Joe and Jane that know nothing about photography. So a camera like that is fine for the common consumer that just wants good enough. If you are picky, want better and are ready to move up, you want a more serious camera.
No pro or enthusiast photographer that might own or use the SX50 would ever give it a glowing review. Think of it this way. A writer for automobile magazine or car and driver will likely give a Toyota Corolla or Honda Civic a realistic review, pointing out the pros and cons of a sensible car like this. They drive everything from the cheap to the high end.
Someone that hasn't purchased a new car in 10 years, that hasn't driven the best cars around is going to rave about how great the car is.