I thought we had a Beethoven thread not too long ago, but search didn't turn up what I was looking for.
Karajan/DG 1962
is great choice for budget price, very solid with good sound. I also have the
Karajan/DG 1977 which has a different style usually faster in tempo and timings, 9th symphony has spectacular climax and sound is probably just a little better than 1962........but cost is higher. Avoid early Karajan/EMI which is mono and newest Karajan/DG digital set which has weakest sound and performance.
Zinman/Arte Nova
Modern instruments played in the period style gives you clarified textures and faster tempos, overall very solid especially for the budget price.
Harnoncourt/Teledec
Good performance, sound quality issues however.....if you do not have balance control avoid this, sounds like 90% of music coming from one speaker.
Bohm/DG Doubles
Similar to Karajan but I may actually like this even better overall. You can get all symphonies by getting budget priced DG doubles, this really surprised me how good it is both sound and performance, doesn't get much mention by reviewers but it is one of the best sets out there!
DG DoubleDG DoubleDG Double
Wand/RCA (remaster)
New remaster makes this set even more desireable, modern instrument version that does everthing right, will appeal to those who like classic Karajan style, mid price.
Wand
Mackerras/EMI Classics for Pleasure
Hard to find but worth the effort. Very good modern instrument performance, newer recording has very good sound also. Budget price level.
Mackerras
Gardiner/Archiv
Norrington/Virgin Classics
Hogwood/Lyre
Here are the main contenders for period instrument performances.
Hogwood was first and the Lyre recording has great clarity and presence, solid set at budget price. (Also did great set of 5 piano concertos with Lubin impossible to find now).
Norrington really shook things up with strange timings and unusual sounds, worth having just for radical new approach. Sound is very good and worth getting to have you rethink these works.
Gardiner is probably safest choice of the three, also most expensive. Preformances are clarified and and fleet, sound quality is very good if just a touch bright. Preformance overall probably best of the three period sets.
Abbado/DG 2000
This is my favorite overall set but also full price. Like Zinman Abbado uses modern instruments done in period style, tempos are much faster than his earlier DG set with clarified textures. Sound is also probably best of any set I have and digipaks are very cool.
Misc CDs
Bernstein/Sony - Various (high energy, remastered sound is hot, 1960's NYPO recordings)
Walter/Sony - 6th & Various (very broad tempos)
Kleiber/DG Originals - 5 & 7 symphonies (essential)
Klemperer/EMI - 3rd symphony
Szell/Sony - Various