Arsenal vs Real Madrid and Bayern vs Inter tomorrow then, this is the real business end of the competition.
I think Real will get to the semi final but the 1st leg could be tough away at Arsenal. The Bayern vs Inter tie is 50/50. I don’t think there will be many goals in that tie.
Arsenal might be a tough one to deal with at Emirates. I agree. But I still believe Real Madrid won't lose. They can actually win too. Arsenal won't have Gabriel due to injury. The defense is more vulnerable - actually it's valid for Real Madrid also lately

.
As for the other fixture, I don't think Inter can win away. Inzaghi will just adopt a defensive game plan probably and look for counter-attack opportunities. If he manages to get a decent score there then I'm still thinking Inter will be the one advancing to the semi finals...
For the matches happening, you can already have some bets that you can take here. But check the odds where you can get good results. And of course, where you are more comfortable betting on these games. Arsenal to win at 2.35. But if you fancy the underdog here
, which is Real Madrid at 3.15. In some bookies, the betting is already closed for this match.
Moreover, if you see the lineup of the matches. Most favorites are in the range of 2.x odds, which means, the bookies don't have the algo to really know which teams will have a very good chance of winning. Usually, if they are quite sure and has heavy favorite, they will only give like 1.0x odds on the potential winner.