It looks like nothing has changed about Inter after the international break. Actually it was a long enough break for them to collect themselves and focus on their game much more. For example, Juventus did this very well and destroyed Bologna right before their Champions League match. Inter had a more challenging opponent like Roma of course but they should still have been able to win in Giuseppe Meazza. They lost by 2-1 instead and made things even more difficult for themselves.
I expect them to be not very prepared against Barcelona as well. But Barcelona are in a pretty solid condition now. No matter where this match is played, I think Barcelona would defeat them anyway. Therefore Barcelona win @1.82 is pretty attracting to bet on.
Inter Milan still can't get out of their slump in Serie A and now they won't be easy in the Champions League either because they joined giant clubs from each League. Barcelona is their next opponent, and I see they will not be able to stop Barcelona's move to get a win in their match. I don't see that they will be able to get past the group stage in their current state. In the end they have to dash their hopes of talking more in the Champions League this season.
Matches that teams play before the Champions League are not always worth taking into account, as they may not always be indicative, but I agree that Barcelona are now in much better shape than Inter. Actually, when you get into the same group with Bayern and Barcelona, it already sounds like a verdict, Inter initially had very little chance of reaching the playoffs. Maybe I'm too hasty with conclusions, there are still many matches ahead, but I doubt that Inter can beat Barcelona.
You don't think it's always an indication for them for a Champions League game, but I think it's very important for them. Is AS Roma better than Barcelona? I think Barcelona is a better club than the opponents they faced before. Barcelona are unbeaten in La Liga and only tasted defeat against Bayern Munich in the second match of the Champions League group stage. And you realize that, that Inter Milan will be very difficult to play against Barcelona in the next match.