Well I Wouldn't say that Intamin is better than B&M. Intamins Get very smooth but they aren't too complex w/o being rough i.e. Eurostar very complex but very, very rough, i.e. superman:ROS(SFA,SFDL) if it had an anymore boring design i would swear its a kiddie coaster, but its very smooth.
So,after all of this B&M are even w/ intamin. Intamin not complex but mildly smooth & a big factor, cheap. B&M; Very smooth, very complex, But Very expensive