Didn't Lyon beat Real recently. Albeit a few of their players have gone, but it still should be good. Ajax have got a young team, think they'll give Real a decent run at least. Still expect Real to win that group though.
I'd be really surprised if Barcelona didn't win all 6 games in their group.
Us and Chelsea should be pleased with the groups we have. I think Chelsea have the more difficult group though, Leverkusen are getting back up there, not the same team that beat us in the 2001 semis (we'll quickly move on from that) and lost to Real thanks to one of the all time great goals by Zidane at Hampden in the final but getting back towards it. They also don't have to travel that far do Chelsea, that's another good point for them.
I think Arsenal will go through. Marseille will be tough, they did well against us last season. Dortmund are an unknown quantity at this stage. They have talent but, for most of their team the first time at the top level. Think they will go through with Arsenal though, all important though where Arsenal finish in that group. Can't risk 2nd again.
This is what City should have expected. They are relatively new to European football so they haven't got as many coefficient points as their talent justifies (same with Dortmund). They will do well to get out of that group but I think they will.
I fully expect 4 English teams to go through. United and Chelsea winners, Arsenal and City runners up.