Wow, good for you. I've been living in the Philly area for 30 years and haven't played ONE of the many top clubs in the region. You must be living clean.
I think most of the other solid courses have already been mentioned.
Wyncote - A really nice course, always in good condition. Usually windy. I enjoyed each time I played it. District 1 high school championships used to be played here back when I was coaching. A great course for the top 20 kids...for the rest it was a real grind.
Jeffersonville - if this was a bit longer and not so crowded (has anyone ever played it when there isn't 3 groups on each hole???) it would be making a lot more "lists". Maybe my favorite and most fun track around. This past fall it was borderline immaculate in conditioning.
LuLu is great. I'd hit that for sure.
Lots of people rave about Glen Mills. Certainly a good course but not my particular cup of tea. Built on the side of a hill and I'd say they make too much of a good thing.
Enjoy.