I guess it depends on what you want. The further east you go, the worse the snowpack is this year. A Basin, Loveland, and Keystone are all hurting. If you are hoping to get a big mountain experience, then I would skip those this weekend.
Eldora is a small resort with limited vertical, limited steeps, and generally hard snow. It is convenient.
For an extra 20 minutes from Loveland (the tunnel), you can make it to Copper or Breck. You should be able to make it by 11:30 given your arrival time.
I think it really depends on what you want. Winter Park would be a good choice as well, although it is not my favorite mountain. It will be shorter to access than the Summit County resorts, though.