Hello all, I am looking at purchasing a John Deere LT155 with a 48" deck. This series offers Kohler, Briggs and Straton, and Kawasaki engines. What do you think about these? Which one would be better? I have heard bad things about B&S, somewhat think a Kohler would be better. Kohler is pretty good for generators. Any thoughts? By the way this tractor has the Hydor-stat drive system. Thanks in advance.