I'd suggest that you not rely on review sites where reviewers all have a bias, and look at actual products. Even then, when you take them out of the store lighting, the screens will be a different color, so that is not reliable either.
Most laptops with i5 or i7 processors have plenty of processing power for editing images, but, if you want to edit high MP images in the future, then the story will be different. Another thing to consider is the hard drive they include. They are often just plain slow, and they fail if subjected to a hard shock. I'd plan on replacing a hard drive with SSD as soon as I could. Its easy to clone the original HD to a SSd, and save it as a backup.
Another thing I do not like is the flat keys that have no feel along the edges. The importance of a good keyboard should not be overlooked.