i don't remember them all to give an honest opinion but if i had to pick it would be the Goth house from ts1 (5 sim lane) because it's iconic. also the dream house from ts1 console story mode because to me it's iconic as well lol but never finished that gamemode. from ts4 i'd pick vlad's mansion, it looks majestic but i bulldozed it and built the Goth's 5 sim lane on that lot.