Just watched the Solomon Islands v Tahiti highlights. The Solomon Islands could be the team to beat - they look to have a lot of pace and decent attacking ability, 3 very nice goals. Interestingly, I saw they played the Brisbane Roar in an unofficial friendly at the start of the month and won 1-0 - read into that what you will.
My assessment would be the Solomon Islands might be most likely to score a goal against the All Whites, but Papua New Guinnea would be the most likely to deny the All Whites any goals. Their semifinal should be a cracker, considering a 3am NZ time start for it.