What ps2 game should i buy out of these?

im between resident evil 4. kingdom hearts. or okami. i have shadow of the colossu already an god of war 1 an 2. and the ja an rachet series. but out of those first 3 i listed. which would u recomend? both seem sick. i dont like games that are too hard lol like iwant it to be fun and enjoyable. games like jack 2 get annoying playin especially if im high haha so thats not fun. kingdom hearts i hear is amazing but resident evil 4 looks cool, kinda scary tho haha i usually havent played many scary shooters in the past so id be new to this genre