Never been biased mate, was just stating my opinions on people who seem to enjoy insulting random members on an internet forum.
As for the game - From a neutral perspective i reckon you will struggle to keep a clean sheet most of all. You're going to have to approach the game with the intention of scoring quite a few goals, and that's never been capello's style IMO, so you might struggle to balance it out when it comes to attacking and defending. You're going to have to come out and pressure arsenal sooner or later, which will inevitably leave gaps in your defence - gaps that arsenal love to expose - and with the pace of reyes, hleb, ljungberg, and henry, they can easily score 2 or 3 goals on the counter attack once you come out. They did it against madrid at the barnabeau when they came out, and could have easily scored atleast 3, and they also did it against inter at the san siro when they came out, and ended up scoring 5 - they are just so dangerous on the counter attack its un-real.
Having said that, i think capello knows that if arsenal score then juve to advance to the semis would transform from reality into fantasy - which is why i reckon he's not going to play as attacking as people will expect. That way, you would HAVE to create chances every once in a while - and your advancement would depend on whether you take those chances, and keep tight at the back at the same time. That, imo, is a very, very difficult task against a very, very hungry and determined arsenal side.
Its not impossible - but you'll need to be clinical, as well as have some luck on your side on the night. Either way it should be a fascinating tie, but you've put yourselves in a very very difficult position.