Definitely GS, they tend to live and die by how "on" their perimeter guys are any given night. Denver can fall back on their shot-blocking bigs and their defense if things are going their way offensively. The Denver bigs have shown in the past that they can alter SA's game in the paint which could cause a lot of offensive headaches when Tony/Manu/Gary/etc aren't getting those chip shots and floaters to go.
Come a little closer honey, I won't bite ya.
One more lager, and I might just learn to like ya.