Finished Rising on Hard tonight! I think I'm going to do the DLC story stuff (which was free on PSN when I was looking, if you have the game check to see if it's still free!) and then go for Revengence. I gotta say, I was pretty skeptical of the game at first but I wound up really loving it. Usually I just beat a game on Normal mode and put it down for a while before coming back to it, but with Rising I immediately started a Hard playthough as soon as I finished the game. The final boss is in particular definitely one of the best moments in the series for me. A well thought out fight from beginning to end with an awesome villain that definitely goes in the 'all time best' category for me.
Also added the South Park game and Ground Zeroes to the list, since I forgot about those.