Lavender Beds:

Small - 29/59 has it's own private island, bridge, and waterfall view. Best small in the entire game.
Medium- 11/41 one of the best mediums in the game
Large - 28/58 has a good view and is right next to the MB/bell

Shirogane:

Small: 22/52 - Beach side
Medium: 8/38 - Right next to private beach cove and hot spring
Large: I don't like any of the larges in this ward

Mist:

Small: Any of the beach plots 19-21 would suffice. Great beach living right next to the MB.
Medium: plot 6.
Large: Plot 5

Goblet:

Small: Plot 24. Unobstructed canyon views and the MB is right next to your entrance.
Medium: Plot 25. I like the unobstructed canyon view, I can see all the stars(it's gorgeous at night), see the sunset, it's literally right next to the MB/bell, and it's secluded. This is my current plot and I loooooove it!
Large: Plot 30. It's private, has an unobstructed canyon view, it's also next to a MB/bell, ect.