I do not have SACD equipment, and I am surprised by Vanska's Eroica because of a strange echo effect. This is noticeable in the first two chords and thereafter, whenever sharp accents are heard. Instead of decaying gradually, the sound seems to bounce off a distant wall. For me, it makes this performance almost unlistenable. To my ears the recording also sounds weak in the highs, which dulls string tone and was also typical of Reference recordings with this orchestra. This is strange because of BIS's deserved reputation for outstanding engineering.
It leads me to suspect that BIS may have tried to add reverberation artificially for the Redbook layer. Since I have not heard any of the other Vanska/MO Beethoven cycle, I don't know if this is noticeable in other recordings.
Recently I stumbled across an Eroica with Jaap Schroder and the Smithsonian Chamber Orchestra in a secondhand store, probably long out of print. I like this performance a lot. Also on original instruments, I like Roy Goodman and the Hanover Band. Zinman leads a fine historically informed Eroica, though I'd rather the violins be divided antiphonally. Szell/Cleveland is a classic account both lively and intense. Wand is outstanding: a slightly Romanticized reading touched by historical awareness, and just astonishingly well played and recorded. Haitink's LSO Live account is in a similar vein, though the opening chords are a little sloppy.