windwaker was fun. the only thing i didn't like was sailing.
i am no fanboy but i think all the zelda games i have played have been fun and challenging. they are not impossibly hard, and they arent retardly long either. you dont need a guide to get through the basis of any of them games(although some people buy guides like the church buys bibles).
and a TP has been the easiest zelda i have ever played.