1.
Sacchi's Milan. Best left back of all-time, arguably the greatest striker, centre back (with the focus on defending) & defensive midfielder of all-time as well as probably the most complete footballer ever. And the rest of the squad wasn't too shabby either!
van Basten - Gullit
Colombo/Evani - Rijkaard - Ancelotti - Donadoni
Maldini - Baresi - Costacurta - Tassotti
Galli
2.
Guardiola's Barca. Messi, Xavi, Iniesta, Busquets & Alves is simply not fair to the opposition — but the
relative vulnerability of their defense compared to Milan's pushes them back to the runners up spot. Although it's not like there's much between those sides, I'm pretty sure that Barca would win plenty of their head to head encounters as well.
Villa - Messi - Pedro
Iniesta - Xavi
Busquets
Abidal - Pique - Mascherano Puyol - Alves
Valdes
3.
Ajax of the 1970's. Simply incredible & easily class above the rest of the quite impressive competition.
Keizer - Cruyff - Swart
Mühren - Neeskens
Haan
Krol - Blankenburg - Hulshoff - Suurbier
Stuy
Honourable mention to the Real Madrid side of the 1950's with the magnificent forward line of Gento - Di Stéfano - Puskás - Del Sol - Kopa, but that side was incredibly top-heavy and I don't think that it's going to be able to outscore the above-mentioned sides.