Here is what i think:
1 Red star vs Partizan
2 RealMadrid vs Barcelona
3 Porto vs Benfica
4 AC Milan vs Inter Milan
5 Olympiakos vs Panathinaikos
6 Man. United vs Arsenal
7 Bayern Munchen vs Red Star
8 PSG vs Olympic
9 Everton vs Totenham
10 Man. United vs Bayern Munchen

wheres Boca Juniors Vs River Plate?

anyway

1. Inter vs AC Milan
2. Boca Juniors Vs River Plate
3. Liverpool Vs Manchester United
4. Real Madrid vs Barcelona
5. Bayern Munich vs 1860 Munich
6. Liverpool VS Everton
7. AC Milan VS Juventus
8. Arsenal Vs Tottenham Hotspur
9. Read Madrid vs Atletico Madrid
10. Real Madrid Rayo Vallacano

HOW COULD YOU BOTH LEAVE OUT CELTIC V RANGERS, THEY HAVE THE BIGGEST FOOTBALL RIVALRY IN THE WORLD.SCOTLAND AND ENGLAND ARE ALSO TWO OF THE BIGGEST FOOTBALL RIVALS!

top derbys are as follows:

1. Croatia vs Yugoslavia
2. Celtic vs Rangers
3. Boca vs River
4. Brazil vs Argentina
5. England vs Scotland
6. Zvezda vs Partizan
7. Russia vs Ukrain
8. AC Milan vs Inter
9. Lakers vs The Jazz

Rangers Vs Celtic is a close 11th on my list

The old firm clash & the battle of Britian.
nothing comes close.
Up the Celt`s
Come on Scotland.

My definition of a soccer derby is two teams from the same city like these match ups:

1. SL Benfica vs. Sporting Lisbon CP
2. AC Milan vs. Inter Milan
3. Atletico Madrid vs. Real Madrid
4. FC Porto vs. FC Boavista

Am I right or am I wrong!!!

1.AEK - Olympiakos
2.Panathinaikos - Olympiakos
3.Panathinaikos - AEK
4.Partizan - Red Star B'grade
5.Fenerbahce - Galatasaray
6.Celtic - Rangers
7.Porto - Benfica
8.Ajax - Feyenoord

These are my favorites
I didn't choose from England or France because there is NO passion at all in there derbies...

in Turkey: Galatasaray-Fenerbahçe
in Italy: Juventus-Milan
in Germany: Dortmund-B.Munchen
in Netherlans: Ajak-Feyenoord
in England: M.United-Arsenal
in France: PSP-Monoco
in Spain: R.Madrid-Barcelona
in Portugal: Benfica-Porto
in Turkey second league: KARÞIYAKA-Göztepe
in Turkey again: Galatasaray-Beþiktaþ

1) The Old Firm (Celtic-Rangers)
2) Barcelona-Real Madrid
3) The Netherlands-Belgium
4) Milan-Juventus
5) Galatasaray-Fenerbahce
6) Man United-Liverpool
7) De Klassieker (Feyenoord-Ajax)
8) CSKA Moscow-Spartak Moscow
9) Boca Juniors-River Plate
10) Willem II-NAC :-) (although NAC is playing in the TOTO-division now heh heh)

It must be known thet in Brazil every cities have at least 2 teams, so there are lots of derbys. The greatest ones are:

Palmeiras x Corinthians
Flamengo x Vasco
Atlético-MG x Cruzeiro
Grêmio x Internacional
Atlético-PR x Coritiba
Ponte Preta x Guarani
Bahia x Vitória
Botafogo-SP x Comercial
Paysandu x Remo

And there are others also.

I agree !
Brazil = The BEST soccer in the world !

Sorry about "every cities". I meant "all the cities" or "every city".

Olympiakos-Panathinaikos is the HOTTEST derby everywhere!80.000 ppl come to see it and panic is everywhere!

What about Ajax-Feyenoord? Ask Carlo Picornie... (ugh, this is a bit hard, I think)

WILLEM II RULES!!

Rangers vs Celtic is the biggest and the best Derby in the world ever. The hatred is unbelievable.
The only other derby that comes close is Scotland vs England

---
The Bests:
Grêmio x Internacional
Palmeiras x Corinthians
Atlético Mineiro x Cruzeiro
----
Others:
Flamengo x Vasco
Flamengo x Corinthians
Bahia x Vitória
----

BEST SOCCER OF THE WORLD = BRAZIL
(Melhor futebol do mundo = Brasil)