Better at.....what? If you say 'cooling'...what flow rate? What FPI are the rads? What fans will be used? What is the load that will be applied to the loop?
There isn't just a really cut and dry answer without knowing more information, and even then, it could be negligible depending on the replies.
Ok let me get to the point, I'm just saying that which brand has higher quality when it comes to radiators.