You have to agree with what Anakin says in #256 (the relevant line of which was taken verbatim from the movie script): Naboo really is by far the most beautiful place we've seen. Compare to the desert wastes of Tatooine, or the wall to wall skyscrapers and industrial scenery of Coruscant. Or to the places we see later in the movies: the Mordor-like mountains and caverns of Geonosis, the frozen deathtrap of Hoth, the gloomy swamps of Dagobah. Bespin might have nice sunsets, but you'd go nuts living there, not being able to walk outside on the ground. And the moon of Endor might seem pretty, but you'd have to share it with Ewoks...
All things considered, Naboo is about the only planet that seems like it might actually be really nice to live on. Where everyone has an Italian villa and the weather is cheerful, and there are lakes and rivers and presumably canals.
Okay, I admit it. Basically all I want from life is to live in a place with a good pizzeria around the corner and a gelateria nearby. I doubt you can get a decent Neapolitan margherita pizza on Tatooine.
Padmé: Why did you leave me out there with—
Anakin: Your mother and sister?
Anakin: It's important to spend time with family. It reminds us of who we are and where we come from. Our present selves are more than just people on some random mission. We need to know our own backgrounds to understand our motivations.
Padmé: I understand that we need to lock Bubble away for good.
Anakin: It's not that easy.
Padmé: Things used to be so simple. Kill the bad guys, take their loot.
Anakin: But you're learning that there's more to life than that.
Padmé: Yeah, I guess so.
Anakin: That's good. You've taken your first step into a larger world.
Padmé: You're right. Bubble is just the tip of this conspiracy!