Summary: Photoshop is absolutely the best photo editing software out there. I can not imagine working without it. CS6 is no exception, it just keeps getting better and better. I would recommend photoshop CS6 to anyone who wants to make a good photo great!!
Summary: Overall if you are planning to upgrade to Photoshop 6 its a great purchase if you will be doing any web development. If not the other features such as new vector based text are enough to get you to purchase this upgrade. The only scenario I can see someone not needing this upgrade is if all they were using photoshop for is scanning and color correction.
Pros: very indepth and has many great new functions
Cons: The amount of Ram needed to run this application keeps getting bigger and bigger.
Summary: i would suggest Adobe above Corel as it is the leading software in the advertising industry. This being so, it is thus more applicable, and it does have better features to chhose from and play with - only catch is that u'll have a lot to learn and explore before u can use it to the fullest potential