I have only read a couple of the books in this series out of allot. But a like the ones of read I've heard all of them are very good. I personally think that you should at least read the one called Redwall.

I have not read them all either but, they are a great series.

I have personally made a point of reading every book that Brian Jacques has ever written. So far, only one remains to be read and I own that one... Redwall started it all for me. It was probably the first 'big' book that I read and was beautiful. True, the stories aren't anything more than repetitive or simplistic, but I enjoy them incredibly. I recommend at least reading Redwall. If you don't like it, then stop there. However, if you enjoy that one, read the entire series. You will like pretty much all of them if you like one.