Easiest boss in the game may be a bit of an exaggeration, but he's pretty much right. Parrying Gwyn makes him ridiculously easy. If you have trouble with consistent timing, wait for him to do a combo attack. Block the first hit, and then parry the second. The timing will always be exactly the same, and you'll know the second attack is coming. It makes it much easier than trying to react to his first attack properly. --- ~El Psy Congroo~ PSN ID: FatBeezzee
Gwyn parry is harder than most because you need to be early as he swings it pretty fast, when most of the other enemies tend to have a parry window that is later than you expect.
Though if you are fighting him melee non-parry, he is really hard as he is extremely aggressive. And he don't have much cool down time after his attacks. --- You're pretty radical, can I fill your valence?