Oh wow, I love this thread a lot!!
1. Most of my dream villagers are tier 5... and they're dreamies because I had them in previous games and loved them to death. The only tier 1 that I have is Beau, who moved in randomly over no paths right next to my Town Hall, and I've adopted him as my favorite lazy villager

2. I'm going to keep my third player home as a tent, most likely... she lives in the middle of my fruit orchard and I love the feel of the tent, it makes the setting more natural.
3. I only use orange, pink, black, and occasionally yellow flowers in my town. I'm working on my DA which will be set in early November, so the colors work best with the fall scheme.
4. I DO plot reset, but I'm not obsessive about who moves where. The set up of houses is pretty organic, and I only make them move their plot if they're moving in over my paths. Everything else can be recovered. I've never understood the appeal of having villager houses in straight little rows.
Other than that... I'm kind of a basic ACNLer xD I plot reset, time travel a lot, have dreamies... I need to interact with my villagers more!! I've been so obsessed with getting my town perfect that I've neglected my relationship with the people in it.