A Crown Jewel would be great but might be worth considering a Pegoretti or De Rosa Neo Primato (among others). Or one of those NOS Merckx frames that you can get sprayed in the classic colours of your choice?
I thought that I'd get myself a 'special' steel road frame a couple of years ago but the myriad of possibilities made it hard to choose (plus I'm Libran). Bizarrely after much enjoyable research and thinking I ended up with a Surly Crosscheck which I really like, mainly because it's such a good fit.
A friend has a steel Bertoletti which is really sweet, lighter than my s-works too (thanks in no small part to carbon record). Recall reading somewhere IF use pegorettis geometry.
Merckx would be nice but the weight is a bit of a killer for me.