Not enough experience re 2009-2011 to comment.
2001- very good, classic
2002 - pretty weak, but some surprisingly good wines (Montevertine Pian del Ciampolo, wowza for $15)
2003- like 2003 elsewhere in Europe, too round for me overall. though some good shorttermers
2004 -ripe but structured
2005- a tad leaner, some very elegant wines
2006- pretty big and ripe, but with structure (Chianti more likely to be classic than BdM, where some overripeness)
2007- pushing it ripeness wise, a bit like 2000 if not 2003
2008- leaner, but some wines that really appeal to me.
Of course, these are all just based on my limited tastings (and conversations). And what is too warm/ripe in Brunello might be very good in Chianti Rufina (kind of like hot vintages might do well in Fixin and less well in more famous Burgundy appellations).