I think if you ten people that question, you will get ten different answers. Most match barrels will shoot very well, it's normally a matter of personal preferance. I would suggest you stick with the "higher" brands, such as Lilja, Krieger, Pac Nor, Shilen, Hart, etc. They all turn out very high quality match grade barrels. I have used all of the barrels listed above, except Pac Nor, and had tremendous success. The only main difference with the above companies is the tolerance allowed and method of rifling (i.e. Krieger uses cut rifled/Hart uses button rifling). I have yet to see a difference when shooting. Of course, every barrel maker will say theirs is the best. I don't think this will help you much, but it's my two cents worth anyway.
Jim