I think it would be infinitely useful (and fun) to be able to set up specific battles with full control over all the minutiae. You know, being able to set up how much hull you/they have, weapon load outs, crew (including health and experience levels), even individual tile/room oxygen level and fires. Basically its "I want to put this ship, with this stuff, in this condition against this other ship, with this stuff, in this condition."
It would be a nice way to practice with weapons that you don't get a chance to see much (I think I've seen ONE anti-bio beam in my several-months-now FTL career) and a great way for people who are struggling to work on their crisis management skills.
I don't know about how it would fit into "normal" gameplay. Personally, my ideal version would just be Customize Conditions->Fight->Win/Lose->Customize Conditions. Imagine the fun you could be having in a Kestrel with 5 Zoltans, no shields and no reactor bars against a Rebel with nothing but fire weapons. Can you take them out before your crew (and power supply) get flash-fried? Tune in next week!
But seriously, it'd be a fun community thing, too. We could swap challenges around, see who can make the most epic triumph of the face of (yet more) absurdly stacked odds.
Here's to winning the no-win scenario!
