Top 30 Symphonies

[Florestan]

Johannes Chrysostomos Wolfgangus Theophilus Mozart - Symphonies 36, 38, 39, [41]

If you go by that, then please be consistent! 

Bernd Alois Zimmermann - Sinfonie in einem Satz
[Bohuslav Jan Martinů - Symphonies 1, 3, 6]
Charles Edward Ives - Symphony 4
Ludwig van Beethoven - Symphonies 3, 5, 7, [8, 9]
[Arnold Franz Walter Schoenberg - Kammersymphonie 1]
Anton Friedrich Wilhelm von Webern - Symphony
Hans Werner Henze - Symphony 10
Louis-Hector Berlioz - Roméo et Juliette
[Henri Dutilleux - Symphony 2]
Johann Julius Christian Sibelius - Symphony 6
[Johannes Brahms - Symphony 3]
Karl Amadeus Hartmann - Symphonies 4, [8]
[Karol Maciej Szymanowski - Symphony 4]
Mieczysław Weinberg - Chamber Symphonies 3, 4
Franz Joseph Haydn - Symphonies 44, 46, 49, [84, 102]
Poul Ruders - Symphony 2
Witold Roman Lutosławski - Symphonies 2, [3]
Oscar-Arthur Honegger - Symphony 5
[Antonín Leopold Dvořák - Symphonies 5, 6, 7]

FTFY. 

[Mirror Image]

Let me try my hand at this...(in no particular order of course):

Vaughan Williams: 3-6, 8
Shostakovich: 4-8, 10, 11
Sibelius: 4, 6, 7
Nielsen: 3-6
Mahler: 3, 6, 9
Bruckner: 6, 9
Martinů: 3, 4
Elgar: 2
Ives: Holidays, 4
Szymanowski: 4

[RebLem]

I think I might be able to keep it to 100 if I really tried, but 30?  No.  Just off the top of my head:
About 3-4 Haydn Symphonies before No. 82, then all of them from 82-104 (preferably the Sigiswald Kuijken recordings) + the Sinfonia Concertante in B Flat.
The last 6 Mozart Symphonies.
The last 7 Beethoven Symphonies.
The 8 Schubert Symphonies.
Berlioz Symphonie fantastique.
Bizet Symphony n C.
The last 3 Mendelssohn Symphonies.
The 4 Schumann Symphonies.
The 4 Brahms Symphonies.
The last 5 Dvorak Symphonies.
The last 3 Tchaikovsky Symphonies.
The Franck Symphony.
the 9 Mahler Symphonies.
The 7 Sibelius Symphonies.
Prokofiev Symphonies 1 and 4-7.
All 15 Shostakovich Symphonies.