The more you hit and the more often you hit the more EXP you will get, so find the best monster with the most HP and the monster you can hit the most often and you will have your place to train.
If anyone could post a pic of real coords "where to stand" that would be great. I am actually stuck right now and them logs are real it looks like I ate some.... The real co-ords are: 16,43 North 19,13 South