there is nothing wrong with comparing a Conroe to a K8 X2. They are both the fastest prcoessors available from their res[ective manufacturers. It matters not if one design is newer than the other design, only which is the best.
How is it polar opposites?
It's giving people that want a High Def player, a comparison between what they will get NOW if they go one way or the other.
On another note, wanting Blu-ray to succeed because it offers more storage is pointless imo. Wether it becomes mainstream or not, it will still be available for use on the PC because there is a market for such high capacities. Although why bother with 200gb (possibly, will probably be waiting a while) Blu-Ray when you will be getting 1.2TB holographic storage within 2 years.