The initial list of games supported through back compatibility is relatively disappointing. That said, MS have acknowledged they are working to improve it and, in particular, to address the current problem with support for multi-disk games. On that basis, MS deserves at least two cheers for making a good start.
But in terms of prioritising titles for support, I'd like it if MS could reflect on those titles where there is the greatest historical interest in ensuring they remain playable on new hardware. I traded in my 360 almost two years ago and was surprised at how little reluctance I felt in doing so. There was only a tiny range of games that I felt regret about not having access to any more.
In truth, there are relatively few 360 games that would genuinely benefit from preservation. The two categories that I would de-prioritise are:
Multi-platform games which remain available on modern hardware. This might be because they've had a "remastered" version for a current-gen console. In many cases, however, it is because PC versions remain available, on sale and playable. So a lot of the big cross-platform shooter franchises would not, to my mind, be a priority as they are generally cheaply available on Steam and/or Origin.
The next category of games are the instalments in iterative franchises which are effectively replaced by later instalments. So the FIFAs, the Maddens and, at a push, the Forzas (Forza 6 is a valid successor to Forza 4 in a way that Forza 5 wasn't). These are the games with no storytelling component, whose features are improved on a year-by-year basis and where there is really no particular reason to go back to the older versions.
That actually covers a remarkably large portion of the 360's library. I was struck when I traded mine in by how few really significant exclusives the 360 had; its strength was always as the "best console to play multi-platform games on" rather than as an exclusives machine. That said, there are a few titles I would dearly love to see rescued:
- Lost Odyssey (arguably the best JRPG of its generation and, in some respects, the "real" Final Fantasy 13. It's multi-disc, so that issue would need to be sorted.)
- Blue Dragon (not quite as good as Lost Odyssey, but still a seriously good JRPG).
- Ace Combat 6 (the final decent instalment in the series when it was still unafraid to be wacky, before it turned into Call of Duty with planes).
- Gears of War 2 and 3 (almost certain candidates for an HD remaster at some point, I guess).
- Deathsmiles (technically also available on mobile platforms, but the 360 port is the definitive version and one of the best bullet-hell shooters available for home consoles).
There is a much larger list of PS3 titles in need of rescue. My original highest priority, Valkyria Chronicles, is thankfully now on Steam, but I would dearly love to see the Ratchet & Clank games and a lot of those PS3-exclusive or best-on-PS3 JRPGs (such as Eternal Sonata) make it out from under the wire.