It does sound fun. I'm willing to try it :) Come to think of it, a good trial might be the Laz-Leo confrontation - a journal entry or an audio log wouldn't really do it justice, so that leaves prose story as the ideal choice (unless you happen to be friends with a Machinima studio). We could have me try to write the first draft as a test to see if I still can write prose, then have you edit it to represent Leo correctly (I'm a little unsure how he would talk/react during a confrontation like this), or rewrite it from scratch if I completely screw it up. Or we could do the opposite - or you might have another idea. These were mostly your ideas, so I'll leave that up to you ;) Speaking of the Laz-Leo battle...
I want to keep it between Laz and Leo too, I was mostly referring to Roger's network of underworld contacts helping in tracking Leo down, but now that you say it, maybe CHAUCER's the best option. And if the hunt's short enough, Laz could be unhinged enough to rationalise allying with him due to being his best option to find Leo - and that he could always go back and deal with CHAUCER later for his part in Leo's crimes. And by the time Bal and Roger break him out, he could have calmed down enough to decide dealing with CHAUCER isn't worth the trouble and leave it be.
Maybe you're right. During my latest absence I got involved at the Dragon Age wiki and at one point decided I was actually going to do a Reimagining Fan Fic series (written in a style similar to A Song of Ice and Fire) for the Dragon Age franschise. As of now, I have like ten different versions of that series sitting in word documents, with an even larger number of versions on the characters I intended to use (in hindsight, I think the main problem was choosing which "origin" to use for the character you play as in the first game - in the game itself you can choose between six origins - and which origins I'd have act out other storylines) - and naturally, I never wrote a single chapter, just a ton of background information, lists of Pros/Cons for using certain characters in certain ways, and short summaries of the first parts of the stories and the endings (I never really connected the dots between beginning and end...). So, I'd probably say I'm scatterbrained and can easily decide to drop ideas completely at the drop of a hat and start over instead of sticking to what I have and moving on. There actually was a short while before I came back here where I considered just shunting over all my stuff to Baccus or Angel and start over from scratch. Err- sorry for the wall of text - just wanted to point out why I think you're probably right about me (though to be technical, the typical reason for being unsatisfied with one's own work is usually because you're a perfectionist, so maybe we were both right in different way) :P
It's not so much that the endings aren't happy (though honestly, I think having a happy ending like Citadel would have worked well in the series, due to its upbeat space opera atmosphere), as the fact that they make no goddamn sense once you stop and think about them, and that they come right the f*** out of nowhere along with the Star Brat - who, BTW, invalidates the story from the first game just by his mere existence. True, the EC and the other DLCs add some foreshadowing about the Star Brat and backstory on the Reapers, and explain the choices more thoroughly, so you can at least make an informed decision based on your moral compass and come up with arguments for and against each choice, but that doesn't diminish the fact that they don't make sense (to me, I should say - you have every right to like it, after all), don't fit the games' themes (Synthesis IMO runs contrary to the theme of "Unity through Diversity" by simply being Homogenisation, and Control was opposed by Shepard regardless of how you played him/her, yet you're suddenly given the option to do it in the ending with no explanation why Shep suddenly changed his/her mind), and overall just come off as one guy's (yeah, unlike the rest of the game, the ending was written by two guys locked in a room without input from anybody else) clumsy attempt to do a "deep" and "artistic" ending. And then there's the devs having promised multiple vastly different endings that "wouldn't just be a choice of A, B and C like other games" (well okay, the choice is actually Blue, Red and Green, so technically that's true, but still) and saying that the fans would have control over the ending, only to later backtrack and call their fans entitled brats who couldn't understand their ingenius writing, and then insisted that they would only expand on the endings because they had "artistic integrity" to think about (running contrary to their "for the fans" statements beforehand).
So, to summarize; I don't like the endings because they don't make sense (to me), contradict themes and story elements from previously in the series, and because the developers blatantly lied about the nature of the endings and then called their fans idiots when they pointed out their lies. Again, just my opinion. I would've been fine with a bittersweet, or even tragic ending (or rather, endings - because this series has also been about making tough choices, so there should be many different endings), if they had done it intelligently and without lying to their fanbase.
Sorry for the second wall of text.