Both games will have been out for over a year, but both will undoubtably see boosts to their sales over the the end of this year.
For reference, both Galaxy and Halo 3 have maintained sales enough to be in the top 100 worldwide every week since release, and for the last reported week, their sales were 31k and 20k respectively.
I think that the holiday boost will serve Halo 3 better in terms game/console ratio, but the sheer sales power of the Wii could quite easily cause Galaxy to sell more in the weeks between Black Friday and Dec. 25.
Though its not perfect, one comparison we could make to help us understand Galaxy and Halos' sales better this holiday is by looking at the sales of Gears of War (GoW) and Twighlight Princess (TP) over last holiday. Each had been out for over a year, and each were "franchise players" for their individual platforms when originally released. In the build-up to Holiday 2007, TP was averaging about 25,000 units per week, and GoW was about 20,000 (keep in mind these are very rough estimates). With black Friday, each saw a boost of around 10k-15k units, and both would keep getting boosts through December until they maxed out the week before Christmas; that week sales were 100,000 units for TP and 80,000 for GoW.
That said, obviously A LOT has changed since last holiday that could really affect the sales of both Halo and Mario. From the increased number of consoles to pricedrops to the greater size of each platform's library, it will be hard to predict how sales of each will be affected this season--for most people that is, not for me. I predict that in their highest selling week this holiday, Galaxy will sell around 150k, and Halo 3 will sell about 130k. For the entirety of the holiday season, Galaxy will outsell Halo by about 100,000 units, but Galaxy will still be trailing Halo by about 1.1 million units overall (its around 1.3 milion behind now).
Agree? Disagree?
