Are you going to get the non-stick surface on the commercial hard anodized?
I'm personally partial to the hard anodized aluminum over the stainless. The tri-ply stainless has an aluminum plate sandwiched in the bottom to spread the heat. The advantage of stainless is that it holds the heat better than aluminum, so it keeps a more constant temperature. Aluminum conducts heat better and faster than stainless. Also, the surface is easier to maintain and keep clean.
When I get out of school and have a real job, I plan on getting a set of the commercial hard anodized with the non-stick finish.
Ryan