Group A is the hardest one for sure.
Real Madrid (Euroleague champion), Fenerbahce, Khimki (richest team in Europe), Crvena Zvezda (my favourite team), Bayern and Strasbourg. Interesting fact about this group is that none team won on road in first 3 rounds.
Bad thing about Euroleague is that next season it will count 16 teams only... Yeah, just rich ones... Money over sport