If it is absolutely essential that you bet, may I advise the following.

FC Porto
PSV
W. Bremen

Inter
the funny thing about Inter is that last season (or before last) they won 3-0 away to Arsenal and then at home they lost 5-1. How they managed to lose 5-1 at home to one of the worst away form teams in Europe I will never understand.

However this is a new day and Inter just looked phenomenal against Valencia. Also note that Valencia are in poor form and their only goalscorer against Inter is now injured! So go for Inter, I say.