Just steer clear of peters, it is invariably unreliable and rarely urtext. ALWAYS BUY URTEXT, apart from the paderewski chopin edition.
Henle not always the best. It is good for Handel, Beethoven, Schubert, and ok for Chopin, Schumann, and some others.Best editions for Chopin - Paderewski, and Wiener UrtextBest for Haydn - Wiener Urtext (Landon).Best for Back - Neue Bach Ausgabe, Breitkopf und Hartel.Mozart - Presser (Nathan Broder)Scarlatti - Schirmer (Yes Schirmer!) Kirkpatrick. Liszt - Editio Musica BudapestAlso, it's worth looking at some "non-Urtext" editions. for example Cortot's Chopin editions, Tovey's and Schenker's editions of Beethoven, even Czerny's WTC (taken with a grain of salt).
Best for Beethoven Concertos: Schirmer
hey what'dya know....a vote for schirmer's after all
I don't really think the edition matters all that much. As long as the basic elements (notes, tempo markings, some dynamics) are correct, the edition is fine.I like Peters, because of how easy to read their editions are. The ones I've seen have been reliable enough. Schirmer tends to squash everything together to save space.An edition isn't good just because it has the word "urtext" printed on it. "Urtext" initially referred to original texts of novels and other literature. If you were dealing with a true urtext edition, the the music would only contain what the composer wrote, so it would be missing a lot of the markings we're used to seeing in our music. In order to fill in the gaps, the editor has to put markings into the music based on his knowledge of the style of the period and composer. So there's always a degree of arbitrariness. Ultimately that stuff is the performer's job anyway.Henle editions are ridiculously priced. $100 for the Beethoven sonatas ($50 per book). Seriously... they're good, but not THAT good.