Let me quote Peierls.
From the book by Sabine Lee
Sir Rudolf Peierls Selected Private and Scientific Correspondence Vol.2
Red selected by Minich
I know the V. Ginzburg (Nobel Prize winner 2003) saying that for He4 the theory analogous to BCS does not exist. So did Feynman asked everybody, who could get formular for heat capacity of He4 near λ point, publish it (Kikuchi's he considered to be wrong)!!!
As i know nobody could get formular till now (2012 january) :)
Landau never recognized
, that bose einstein condensation means superfluidity :)