After riding both quads I like the way the zilla feels. The 450 is tricked out (full front and back extended suspension...ect) and only the motor case and most of the frame are stock. Even with all the bells and whistles I like the way the zilla feels. The 450 was very twitchy. On a mx track it would be great but I ride big dunes. I guess it all comes down to preferences. I'm a big guy 6 foot 4 -6 depending what convenience store I walk out of and 280lbs. The lt500R is the most comfortable quad I've ever ridden. I've tried the DS650s and I hate them as well. Big guys need big quads.