One of things, well really the only thing, premium decoration do in Simpsons Tapped Out is provide bonuses to your XP and Cash outside of the Comform-o-Meter. This table’s purpose is to help you get the most bang for the buck (meaning Donut). For best overall you want to sort by Per SQ. This calculates how much of a bonus you are getting per 1 grid piece in Tapped Out.
Example: Robby The Automaton is 2×2 which equals 4 total grid squares. It provides an overall bonus of 2%. That equals .5% per grid square. What this helps you figure out is which pieces are packing the most bonus in the smallest package. The Springfield Sign gives out a massive 4.5% bonus. BUT it’s 400 squares making it only .01% per square.
I also have the SQ per Donut calculated. This is kind of a meaningless figure as are really going for the biggest bang per square. If you money is tight you can use this field to find some deals but this does not equal BEST in the same terms that the Per SQ field equals.
Currently the Miniature Nuclear Warhead gives a .75% bonus per square, and at 45 donuts you are paying a pretty fair price for that bonus. Long term you are going to make more money and XP from having her than any other Decoration piece if you can afford the extra premium. Flower Planter at just 10 donuts give a decent return of .25% per square at a much cheaper .025 ratio of Donut to SQ bonus.
Check out the full table after the break. Note this table is fully sortable and searchable so check out all the fields before making a purchasing decision.