I agree with Flip that Carm's is worth another try. I've been several times (even though it's an hour's drive from home) and have been pleased.
There are no plans for another beefathon in the near future. However, that shouldn't stop anyone from organizing one.
You could easily do a Westchester-Hillside Beefathon. There is a Buona Beef south of Carm's if you want to include it for comparison. As I recall on a previous Beefathon the consensus was that Oak Park Buona was not great, but OK, esp for a chain.
Or you could expand it to to include other western suburbs. Then you could include the inimitable Johnnie's in Elmwood Park. Another name I have in my database is The Original Mr. Beef in Berwyn. It was recommended some time ago by posters, but I don't know anything about it including whether it has any relationship with the Mr. Beef on Orleans Street in Chicago.
I helped organize previous Beefathons and anyone wanting to take this on is welcome to PM me for details. Note: hours below may not be current. Anyone organizing a new Beefathon should call to confirm hours.
Original Mr. Beef
6915 Ogden
Berwyn
708-484-7933
Johnnie's Beef
7500 North AVe
Elmwood Park
708-452-6000
M-Sa: 11a-midnight; Su: noon-midnight
Buona Beef
2135 S Wolf Rd
Hillside
708-236-0575
M-Th: 10:30-10:30, F-Sa:'til 11; Su: 'til 10
Carm's Beef
1801 S Wolf Road
Hillside
708-449-0125
Mon-Su: 10-9
Paul's Pizza & Hot Dogs
3044 Wolf Road
Westchester
708-531-9080
M-Sa: 10-10
Where there’s smoke, there may be salmon.