Inter Milan: I would like this draw. The only drawback I can see is the fact that we just faced them 4 times last season, and it's getting a bit too often. However, I sincerely believe that they are awaiting a good ass-kicking. Also, would love to see Sneijder embarrassed yet again.
AC Milan: This one is more preferable because we didn't play AC for a while now. I think they are a very old team with no future, and I would be happy to see Ibra humiliated. He will eat his words. I really think we can get a good scoreline like 4-0 against them.
AS Roma: Of course, by far the easiest possible draw, so I would like this one even more. Due to their style, they are going to be the easiest one for Barca. They don't have much quality either. If they are at the level of Basel, Cluj and Panathinaikos, and all the signs point to that, I want them as my first choice.
Marseille: Hard working team as Moe pointed out. I think they will not be too tough, but away game might be tricky. They have a lot of pace, and can be dangerous at home. Still, I consider them the second easiest draw. I would have them as number 3rd in my wishlist behind Roma and AC Milan.
Arsenal: Again, due to their playing style, like Roma, they will be one of the most convenient draws for Barca. But like Inter, we played them a lot recently, and won the matches. Statistics and trends tend to break at some point, and their sprinters might just find a way to do it. I would put them my number 4 pick.
Lyon: Lyon are pretty bad right now, but no doubt will improve. Probably the most hardworking team from this bunch. Have some good quality players even if it is not going for them. Will be very difficult away game. Again, we played them recently, don't want them. Probably the least wanted along with Inter Milan, but since Inter Milan has Sneijder, and I want Barca make him cry, I would put Lyon last in my wishlist.
1. AS Roma
2. AC Milan
3. Marseille
4. Arsenal
5. Inter Milan
6. Lyon
In conclusion, I will not be disappointed with any draw, because of the reasons above. But at least 4 of these teams are very much suited to Barca's style and will find it extra hard against us.