I really am fond of Malossi for build quality, but I can only speak for my ludicrously expensive scooter cylinder. Every single surface was machined aside from the transfer tunnels, which are ceramic coated. The piston slid through with the schwing that you hear from samurai swords in movies and I can fully place my thumb through the exhaust port and bend it up and along the wall it's so large. Really, really have a hard-on for it even months later.
But, if given options of a like option to the DR, I will always choose it. By like-cylinder i mean little to no work to use and able to be put back to the state it was before without replacing parts.