Take your pick. You're fortunate to have a choice in the Windsor Area. Looks like Jeff Beaule is getting the Asphalt figured out. Looks like he has accepted the challenge of running on both. I wish I didn't live 2.5 Hours away, I would love to give the Asphalt a try.
My number one choice would be Carpet, but the Asphalt is an interesting challenge. There is serious talk of an Asphalt Indoor Track opening in Toronto as well.