i have a snapper dealer that gives me good service right now. i'm thinking about changing from john deere to snapper is this a good move. i like the robin commercial trimmers and blowers but i'm not sure about the walk behinds. i do have a snapper 21' commercial mower powered by a robin engine and it cuts great. all i read about and see is toro, exmark, hustler, dixie, scag. are all these brands better than snapper? are these brands better than john deere?