Your top 5 Classical composers:
 

Here's my top 5 classical composers list (in order):

Vivaldi
Bach
Mozart
Tchaikovsky
Strauss

Not in order:

Henry Purcell
Ludwig Van Beethoven
J. S. Bach
Jean Baptiste Loeillet
Anonymous [because some of my favorite Classical and pre-Classical music is without a known composer]

my top five (with fav pieces)
Mendelssohn (Violin Concerto)
Tchaikovsky (Violin Concerto)
J.S. Bach (Violin Partita No3 in E Major (esp. the Prelude)
Haydn (Violin Concerto in G)
Francis Poulenc (Vallanelle for pipe and piano)

My fave composers with pieces I play:
1.Brahms: Rhapsody in G minor
2.Sergei Prokofiev
3.Chopin: Some Preludes
4.Debussy: La Plus Que Lente, Nocturne, etc.
5.Beethoven:several Sonatas

1. Bocherrini
2. Beethoven
3. Tchaikovsky
4. Mozart
5. Liszt

haha, right on

You can't forget Lizst

Wow...can I even pick just 5? How about 6...
In no particular order:

Samuel Barber
J.S. Bach
Manuel de Falla
Frederic Chopin
Gyorgy Ligeti
Bela Bartok

1.Chopin.
2. Mozart.
3.Debussy.
4.Bach (J.S)
5.Beethoven

Alright then:

1. Alkan
2. Debussy
3. Prokofiev
4. Ravel
5. Bartok

In absolutely no order whatsoever.