Don't all fertilizers do the same thing? Home Depot guy puts them to the test.

I found this neat thread of a guy working for Home Depot on the Home Depot Community Forums. He took several big brand fertilizers that you can find at any Home Depot store and compared them by growing tomato plants. It's not a finished thread, but overall you get an idea of how the big brands stack up.

http://community.homedepot.com/t5/The-Learning-Garden/Fertilizers-don-t-they-all-do-the-same-thing-Lets-grow-some/td-p/41829