It would be nice to redo the planetary build screen to separate the different types of buildings. For example: have a farms tab, a lab tab, a production tab, a morale tab, a trade good tab, and a super project tab. You could set it up like the Explorer in windows, by having them set up similar to how they are with the most advanced building available showing and a plus sign next to it if you want to expand it and pick a lower building (Because it would be faster to build.) It would be like this:

(-)Farming - Advanced Farming (BC 150)
... Farming - Intensive Farming (BC 120)
... Farming - Xeno Farming (BC 100)
... Farming - Basic Farming (BC 50)
(+)Factory - Industrial Sector (BC 400)
(+)Laboratory - Neutrality Learning Center (BC 300)
(+)Morale - Multimedia Center (BC 100)
(+)Trade Good - Ultra Spices (BC 500)
(+)Super Project - Hyperion Shipyard (BC 1000)

If you want to build the most advanced building, you can do it the way it is currently done. If you want a less advanced building on the planet (such as Xeno Factory instead of Industrial Sector) then you hit the (+) sign and pick the option that you want under that section.

This way the screen would not be cluttered, but you would still have the flexibility to build what you want on the planets. (Especially important once you research Industrial Sector, since you have to make sure that all of your planets are sufficiently productive before you can even consider researching that tech now.)