I have used Fuzzibunz (I have the hang on the door one, and it leaks if the diaper will leaks, so no rinsed ones unless they are wrung out very well.
I have 2 planet wise bags (one for on the go, and one diaper pail liner) I have used often over the last 2 years, and a new one. And they are by far my favorite.. Only, I like the ones with the straps.. I don't know if planet wise makes one, but I will be looking when I order more.
I have also used Bummis, and it works well, but seems much cheaper than the PW, and I have not used it long enough to know how well it holds up. I do really like the strap on it.