I personally like the Swingarm in a high HP deal. IMO if its a mono shock or 4link it must have a anti-roll on it if not the car will rock side to side to much. The swingarm will not do so with the bottom bars tied together. A swingarm can be dual or single shock. There is no truth to the rod ends wearing out, I've seen several big inch nitrous or blown cars with a suspension with no issues.