You can only chose one, so its clearer which club you prefer the most.

England - Chelsea

Italy - AS Roma

Spain - Real Madrid

France - Lille

Germany - Leverkusen

Portugal - Porto

Belgium - Zulte-Waregem

Russia - Zenit

Holland - Vitesse

Turkey - Besiktas

England - Chelsea
Italy - Inter
Spain - Real Madrid
France - PSG
Germany - Schalke
Portugal - Benfica
Belgium - Don't watch
Russia - Don't watch
Holland - Ajax
Turkey - Don't watch

England - Man Utd
Italy - Juventus
Spain - Real Madrid
France - PSG
Germany - Dortmund
Holland - Ajax

england: man city(they have been the best english team recently
italy: inter milan(coz diego milito played there)
spain: barca
france: psg(ibrahimovic and cavani)
germany: dortmund9they worked hard to make to final in cl)
holland:dont know
belgium: dont know
russia: zenit(coz of hulk)
turkey: fenerbahce (they have a super nice kit)
portugal: benfica(they always make it to the europa final)

England - United

Italy - AS Roma

Spain - Sevilla

France - PSG

Germany - Hamburg

Portugal - Benfica

Belgium - Club Brugge

Russia - CSK Moscow

Holland - Feynoord

Turkey - Fenerbahce

Brasil - Sao Paulo

Argentina - River Plate

MLS - DC United

Mexico - Chivas

CR - Saprissa

England - Southampton

Italy - AC Milan

Spain - Real Madrid

France - PSG

Germany - Dortmund

Portugal - Porto

England - Arsenal

Italy - Fiorentina

Spain - Villarreal

France - Montpellier

Germany - Bayern

Portugal - Benfica

Netherlands - Ajax

If you mean from the 6 big leagues then:

England - SPURS
Germany - Wolfsburg
Spain - Real Madrid
Portugal - BENFICA
Italy - ROMA
France - Monaco

England-Arsenal (Because of Henry's time)
Italy-Roma (Totti)
Spain-Valencia (Paco)
France-Marseille (Marcelo Bielsa)
Germany-Wolfsburg (Olic and Perisic)
Portugal-Benfica (Gaitan)
Belgium-Club Brugge (?)
Russia-Zenit (HULK)
Netherlands-PSV (Many ways)
Turkey-Besiktas (Because of Slaven Bilic,lol)

Italy - Inter
Germany - Stuttgart
@liomessi- Milito never played for Napoli. You must be thinking about Genoa where he was incredible in 08/09.

@wolfie sorry i meant iner milan not napoli

England - Arsenal
Italy - AC Milan
Spain - Villarreal
France - Lyon
Germany - Bayern
Portugal -
Belgium -
Russia - Amkar Perm
Holland - Ajax
Turkey - Only at Christmas

England Man Utd Italy Inter Spain Real Madrid France PSG Germany BVB others none

Spain - REAL MADRID
England - Chelsea [Mourinho]
Italy - Milan [Shevchenko,Kaka,Inzaghi,Dida]
Germany - Leverkusen
France - Marsielle [Great team,without expensive players]

Holland - Ajax
Portugal - Porto
Belgium - Anderlecht
Turkey - Fenerbahce
Russia - Zenit

England - Southampton
Italy - AS Roma
Spain - Barcelona
France - Marsielle FC
Germany - Borussia Dortmund
Portugal - Befica

The rest I've never watched

Barça - OM - As Roma in this order, in England i followed Everton last year, this year i have a sympathy for Southampton this year, very neural in general.

@seymorebutts Haha "Turkey-Only at Christmas" LOL!

England: Arsenal
Spain: Real Madrid
Italy: Roma
France: Lyon
Germany: Bayern 04 or Monchengladbach
Portugal: Porto
Turkey: Fenerbache
MLS: Revolution, for they are my home team
(Also, I know mls is not a "big" league, but it is very entertaining so please don't hate)

Holland: PSV

^
@seymore : Aussie Banter

England - Liverpool

Italy - Genoa

Spain - Tie Between Atletico and Real Madrid

France - Lyon

Germany - Bayern

Portugal - Benfica and Porto