I will be going from Elizabethtown to Philly on June 13 for a quick evening trip. I am planning to take the Pennsylvanian (#42). I could also take a Keystone that leaves at 3:37, and gets into Philly just after 5:00. Which would be better? Both trains are "unreserved" but the Pennsylvanian makes fewer stops. Is Business Class worth the extra money?