FWIW, after reading the comments posted to this thread I took the lattitude to revise Mr. J's proposed rating system to split Level 2 into 2B and 2A and added some "student of the game" comments and some "contributor" comments.
1) Recreational Player... just goes to the bar or pool hall once in a while and grabs a house cue off the wall and has some fun with pool now and then. This player may own a cue. They are not what would be called a student of the game.
2B) Local Tournament and/or League Player... This player is just starting to become a student of the game. Likely owns a cue. They may enter some of the local $5-20 tournaments and may play in a league or two. They may also enter a local or regional big event every once in a while just for the experience. They tend to be the contributors to the money pools and they know it.
2A) Local Tournament and/or League Player... This player studies the game with interest… but has much yet to learn. They enter some of the local $5-20 tournaments and/or may play in a league or two. They're fairly dependable for getting in the money or being within the Top 10 of their league. They may enter in a local or regional big event once in a while but they're mostly a contributor in these bigger events. Starting to gamble, mostly with friends.
3) Local Tournament Winners and/or League Champs... This player has completed a lot of their pool studies. They enter a good number of the local weekly tournaments. It's rare for them to not be in the money. Like the above players, they have a fulltime job away from pool. More than likely, they've always had a job but they've put in the time to develop a respected game among their friends. They play most all of the regional events and occasionally they make the money in these events. Starting to gamble with strangers.
4) Regional Champs... This player most likely doesn't have a fulltime job away from pool.. They tend to stay close to home and may wander within a couple of states for pool action. These players are always in the cash and gamble a bit too. They are the ones who routinely win the nightlys and weeklys and they also place high in the money in the Regional and Local events. Definitely the best of your area (unless you're blessed with having pros in your region).
5) Road Players... This player plays pool for a living. No job, pool is their job. They gamble a lot and are always in the cash in one way or another. They travel all over the country regularly looking for a game or tournament. This player is among the best in the country. May also play in pro events.
6) Pro Tour Player... This player is always at all the Big events. They are the National Champions of the game. Their caliber of play is excellent. Pro tour stops and world events are their place.
7) World Class... These players are the best of the best in the World. Johnny Archer, Efren Reyes, Earl Strickland, Ralf Souquet, Mr. Hohmann , Nick Varner and all the other World Champions. These are the ones who WIN the pro events and world championships.