Bigdog,snapper,hustler or cub cadet

Hello,new to forum, wanting to buy a new ztr and needing advice,my choices are
Big dog alpha 42 inch with Kawasaki engine 3199.00
Snapper 42 inch with B@S pro endgine 2799.00
Huslter 42 inch with Kohler engine 2799.00
Cub Cadet 46 inch with Kohler engine 2799.00
I am using this to mow a 1 acre pretty flat yard, I would appreciate any advice or help,
thank you