I play Prot Pally and I was having a blast the first few weeks.
Didn't really care about the damage nerf, but the Light of the Protector nerf has made it a lot less fun for me. Playing fast and hard with most of my survivability in my own hands was fun. Being entirely reliant on the healer... Not fun. Especially playing as the tank who, in addition to blood DKs, has always had an abundance of self-healing.