Was able to get out and go to Main and Hamlin last night. A work friend of mine strongly recommended their Beef on Weck. So that's what I got.
Schwabl's is considered the standard in some circles for Beef and Weck. Main and Hamlin's Beef on Weck blows Schwabl's out of the water. It was the best Beef on Weck I have ever had, period.