Most of the 'must-see' aren't in the pool stages, so won't be definiate encounters. But anywho:
Dan Carter (NZL.) - Johnny Wilkinson (Eng.). The latter was ripped to shreads the last and only time they've played against eachother, during the Lions series in 2005. Will be interesting to assess as DC's performance has slightly dropped in contrast to his opposite, who is on the rise.
Conrad Smith (NZL.) - Brian O'Driscoll (Ire.). Both similar players in terms of gameplay and style, so would be interesting to see who has the slighter 'edge'.
McAlister (NZL.) - Mortlock (Aus.). Mortlock has a knack for upsetting the Kiwis, so expect NZ to up the anti. Especially with Macca, keep in mind the Melbourne encounter.
Tuilagi (Sam.) - England midfield. A fearsome player who plys his trade in the country, will be sure to give the English a rough time.
English front row - South African front row. Both pride themselves in a strong-beefy forward pack (primarily in the scrum), so would be an epic encounter if both at full strength.
James Hook (Wal.) - Stephen Larkham (Aus.). Again, both are somewhat similar players. If Jenkins opts to put Hook in pivot instead of Jones, Wales are sure to put their hands up due to this extrodinary youngster. Hook is more useful in offensive games (which will be against Australia), whereas Jones is more suited in the conservative style.
Freddie Michalak (Fra.) - Federico Todeschini (Arg.). Both completely different gamestyles, but the pivot is one of the players who decides the outcome of the tightest of matches. This encounter will be tight. Not to mention both will have to knock most if not all the balls over the sticks to ensure a win for their respected countries (not sure if Michalak is the primary goalkicker of France mind you).
