I'm not a fan of the Otterbox Defenders myself. I've used them before, as well as the Commuter, and never really cared for either. I could see the need for them if I was in a line of work that would endanger my phone, but since I'm not, it's way too much overkill for me.
My favorite case that I've used for the MAXX is the Diztronic TPU case. I usually hate TPU cases, but the matte finish doesn't make it feel like a TPU case at all (it's also available in a glossy version as well as in several other colors should you prefer). It's incredibly slim, doesn't add hardly any bulk, and it provides more than adequate protection for bumps, dings, and most drops. It also fits like a glove. I had one for my Galaxy Nexus, and now I'm using one on my MAXX. It's fantastic.
I never have a specific brand that I always go directly to, although Diztronic might be the first. I really like the Speck Candyshell series, but the selection of Android devices that they make those for is incredibly small. I usually decide what I need/want based upon the phone itself. Some cases lend themselves better to certain phone styles more than others.
i have to say i have used many cases and i am not a fan of cases i like to carry phone in my pocket but so far i have found the CruzerLite the best i had it on my GN and now on the maxx its the best and comes in great colors