For me, it's a lock Nani will start v Real. There's ZERO chance we'll keep a clean sheet and there's a more than decent chance Ronaldo will score twice on us. If I'm right about that we're going to need a lot of offensive firepower and that means Nani has to get the start...either over Young (squad player), Valencia (middling form, at best) or Kagawa (an intriguing possibility but not yet proven to be more lethal than Nani).
Whatever happens, it's going to be an incredible sporting spectacle. I'd love to see Nani get the match winner but I won't complain if it's Rafael who bags it for us.