The #1 mouse is the Logitech G700s. I’ve been using this for a long time and although it doesn’t have as many buttons as the first three I mentioned, it has them positioned in better places. One of the issues with having so many buttons crammed on the side is that it’s easy to press the wrong one. This mouse has four on the side, three on the left mouse button, and one in the center. The other benefit of this is that it’s incredibly comfortable. I’ve used this mouse for over 5 years and I love it. The only reason I switched away from this mouse for productivity reasons – I simply needed a mouse with more buttons.
The downside with this mouse is that it’s not very durable. I went through 3 replacements. Twice because the scroll wheel broke and once because the left mouse button broke. However, Logitech’s customer service was awesome and they sent me replacements for free. Eventhough this mouse isn’t durable… and you can see that on mine it’s already showing signs of wear and tear, it’s still the most comfortable mouse. It’s also wireless, low-price, and still has lots of buttons. And that’s why the Logitech G700s is the best mouse for Photoshop.