I haven't been there but will give you what I know. Both are "standard" rated resorts in II. Renvyle strand only has 4 units, they are individual houses on the grounds of a hotel that is quite far out from what I've heard and hard to find in the dark. I don't have any other info on Old Killarney Village except it has between 6 & 10 units and less than 100 members. This is one instance where DVC can likely give you more info than you can get otherwise. They have access to II's internal rating info.