I've made my own, and I've bought stuff by 7th Generation, BioKleen, Ecover, Dr. Bronners, and Mrs. Meyers.
I like 7th Generation dish soap, and I like Mrs. Meyers for cleaning counters and that kind of thing. I feel like they work better than homemade stuff, but maybe that's just because there is a scent involved and so it smells clean to me when it's done.
What experiences do you have? Do you have any favorite recipes for green cleaning products?