I think Sean Lee, LVE, J. Smith are all at about the same level when healthy right now and it's very good.
I would use Lee very sparingly this game to ease him back in. Given how well the other two have played, the fact that Sanchez starts for Washington, and the fact that Philly plays in LA, I don't think Lee on the sidelines prevents us from securing the East this weekend.
After this weekend, build him up to where he feels comfortable on the field after the time off, and otherwise save him for playoffs.
Having Lee available for the playoff run is the most important thing about the snap distribution decisions, bar none.