The one to the left is GravityCat's, the one to the right is Heedicalking's.
Being strictly honest, I prefer Gravity Cat's. The model looks alot more polished and I'm pretty fond of the textures. The main thing that really makes me irk is the scale. Its a Humvee, not a tank or APC. I won't stuff out a pros/cons list - the issues at hand should be obvious.
The only thing I really do like is the turrets. The grenade launcher could do with a slightly larger range, though - if not infinite. I always thought the grenades in those explode on impact, not on fuse. I like the minigun, the animation is nice.
Generally speaking for sound, its good. Nothing worth whinging about.
tl;dr - I like GC's better.
