It's funny really - I absolutely love Jordans Wheel of Time series, and my 10-yr-old son is currently on Book 4 & loving it!

On the Sword of Truth question. hard to say just what I did'nt like about it. Certainly it struck me as ..... naive?.... over-simplified?..... something along those lines. It got to a point where it was just plain annoying me so I put it down.
This is no reason whatsoever why anyone else should not try it.
I'd advise anyone to try any Fantasy series/any series/any Book! Reading is one of the greatest pleasures in life & you should sample everything that tickles your fancy!