What's your favorite settlement in Fallout 4?

That's like asking me my favorite child. I love them all. lol

Once I got past the beginning of the game (when I was focused on Sanctuary Hills), Starlight Drive-In became my home base. I built it up with all of the emporiums and features, sent Buddy the beerbot there, put up a recruitment beacon, and processed all of my settlers through there. At least, until I finally unlocked Bunker Hill. I put a recruitment beacon there, too, and Bunker Hill seemed to get a lot more settlers, so now I process them through that settlement instead. (By "processing" I mean that I outfit them with armor and weapons - guards get Minutemen uniforms, combat armor and missile launchers, farmers get leather armor, shotguns and bandanas, etc. I keep all of my surplus gear in a cabinet near the bell at Bunker Hill.)

Other than that, I really like Abernathy Farm. I built a bar and dance floor at the top, and I like to imagine my Sole Survivor hangs out there with MacCready (her husband), and friends.

I like Spectacle Island. It's nice and big, has crafting stations and a radio tower.

If you build your home on the beach, it can be up to 10 floors high.

I like starlight drive in and sunshine co op.i kept them small with only 11 settelers and 7 settelers.you don't really need to do much to sunshine co op except clean it up,wall it in,put up turrets,plant food and your good to go.