Hi bedz, As far as "stupid proof" goes it all depends on what you want to do with any stb, not just the two mentioned here. As far as which ones best, all a matter of personal preference and you want / need. If you're the sort who struggles setting these things up, why not speak to the supplier to see if they can do it for you, as most will require updating etc, although to some this is a very simple process on either of the stb's you mention and can be done "online" via the box for basic setup, other features will require you to do a little more. A good thing to do and deffo reccomended is to read thro all the forums you can regarding your choice of stb, if you can't find the answer then ask, you'll find people can be really friendly and helpful on forums and your knowledge will soon improve, after all, we all had to start somewhere :-)
Cheers Riz