I got my head bit off the last time I suggested this, but I have to suck it up and do it again. I say get the 1994 Donmar recording first. The lyrics have an edge and a bite that's lacking in the 1954 New York Cast.
Granted, 1954 has Lotte Lenya (former child prostitute and Weill's wife and muse) doing the definitive "Pirate Jenny," but Bliztstein's lyrics really don't sting much fifty years later, if they ever really did.
I'd love to get my hands on the late 70s recording with Raul Julia and Ellen Greene, but I don't think it's ever been released on cd.
1954 has Charlotte Rae, Bea Arthur and Jo Sullivan, though.
You really need both. But start with Donmar.
"How do you like THAT 'misanthropic panache,' Mr. Goldstone?" - PalJoey