Oh, that brings back memories! I love Twinbrook, brought my legacy heir over there (although I do not remember how exactly I did that) after the original save got corrupted. I'd definitely play a custom save based on Twinbrook!
About your poll, I especially like your love for the minor characters, not just the housed premades. Some of my favorite sims in 2, 3 and 4 are townies/promotional sims. Sadly my favorite npc from Twinbrook isn't on the list. He was a burglar, dark skinned, name of Tad or Todd Collanzo, who married into the legacy. I assume he was randomly generated because the original burglar(s) died? If so, then I'm going to recreate him from my screenshots and make him my starting character in your save.
I also remember how shocked I was to discover that there were two child ghosts haunting the graveyard (one child, one teen, actually, and shame on me, but I had to look up their names just now: Wilhelmina Leaf and Kid Mugg). My legacy family made it their goal to rescurrect and properly raise them, what worked out nicely. They both became Inventors, but no matter how hard I tried, they didn't want partners other than each other. So I caved in, let them marry and move out, but they never had children while controlled by the game.
