ZX190 is 18'-6 and the TZX195 is 20'-0. The TZX195 is only rated for 175hp and some say is under powered but usually comes with a tandem trailer which is a plus. I have a ZX190 with 150 SHO and no complaints but wish I had a tandem axle. Best price and best color would be my pick. Might consider whether it will fit in the garage too.
"Sometimes there just aren't enough rocks"