Here's another stab at presenting data on the transition of franchise audiences from last generation to this generation. I'll present my data for all current systems, split across several posts.
A Note on Methodology
For comparison's sake, I've tried to choose the newest iteration of a franchise on the current-gen machines. For the last-gen consoles, I tried to pick the latest iteration that came out before the PS3/Wii hardware. Since the intended purpose was to try capturing what portion of the audience has migrated, last-gen entries which co-exist with this-gen entries wouldn't serve as a clean baseline.
To save space, I've only listed the raw sales for the baseline game. Numbers for the newer games can be roughly reconstructed from percentages, or looked up directly at Garaph. All numbers are Famitsu except a handful of Media-Create figures used when they were more recent. These are marked with an asterisk.
A Note on Interpretation
At the suggestion of others, I've compared like with like (main entries with other main entries, expansions and spinoffs to each other, etc.). This makes sense for series with many entries, but I think it's very misleading with rarer franchises. Gaps of many years allow for changes in audience tastes to swamp any effect caused by the generational transition.
Due to this and many other confounding factors, the numbers I'm presenting shouldn't be a source of detailed conclusions. Big trends are obviously in the data, but the reason why one game got 56% and another got 48% is an invitation to deeper digging, not the end-all to discussion. This is why I've rounded off the percentages: I don't want to give a false sense of precision or surety.
First, a handful of games with entries on all three current consoles.
Code:
PS2 sales(k) X360 percent PS3 percent Wii percent
PES 2007 1050 PES 2009 2% PES 2009 33% PES 2008 10%
DBZ: BT 2 424 DBZ: BL 6% DBZ: BL 39% DBZ: BT 2 39%
NfS: MW 73 NfS: C 13% NfS: C 48% NfS: C 22%