I am looking to get a new ZTR mower. I have my choices down to the Hustler Super Z 60", Scag Turf Tiger 61", Scag Cheetah 61", Gravely 460, and John Deere Z950R or M 60". I will be purchasing a bagger attachment that I can take on and off as this will be primarily used as a personal mower for my home where I want to bag 1.2 acres most of the time and just mow the back .8 acre. I always do routine maintenance and then some and want something that will last as long as I want it to. I also mow every five to seven days depending on the lawn growth (pending rain of course). I would like to get some honest opinions on what would be the best mower and engine configuration of the choices above. Any help would be appreciated.