First off a big thank you to Jboss1217 for his Optimization page found [http://dragonvale.wikia.com/wiki/User_blog:Jbozz1217/Boost_Optimization,_by_jbozz1217 HERE]

So from that point I've built up a new optimization method, which I'm still tweaking but thought I would share as I go.

Assumptions I've made when building this system:

  • You are high enough level to get giant habitats of each type (Level 34
  • You keep 2 of each dragon (this is what I do, 1 baby version 1 adult)
  • You have a MINIMUM of 5 islands to work with (6 if you have a fair # of rare habitats or decorations)

Factors I took into consideration include:

  • Max amount of money the habitat holds
    • #1 Metal ($200,000)
    • #2 Dark ($175,000)
    • #3 Earth ($150,000)
    • #4 Light ($125,000)
    • #5 Air/Cold/Water ($100,000)
    • #6 Fire ($75,000)
    • #7 Lightning/Plant ($50,000)
  • Boosts on each island
  • Space for giant habitats on each island

So the premise is: it is better to have 2 boosts per island as any dragon that has both boosts does make better money, so why strand a boost on an island by itself.
You don't want to have any negative effects on hybrids because of the 2nd island boost. Only time this is unavoidable is when you have an opposites dragon unless you put a habitat on a neutral island.  I have done this in 1 case with my frostfire and bluefire dragons, they are on island #3 and I filled in the habitat with hybrids that get a boost from that island.  We also have to consider that some habitat types (such as earth) you will want a lot of since they make good money, this means we can't pair it with another habitat that takes a lot of space or you just simply will run out of room on that island.  Also care has been taken that you don't have a dragon that can't be placed with atleast 1 of its boosts without getting a negative from the other boost on the island.

Here is a simple list of the island numbers I use and which boosts are on them (for use in the charts below)

Island Habitats
/ Boosts
Opposites  
#1 Lightning & Metal Water & Plant  
#2 Earth & Plant Air & Metal  
#3 Fire & Dark Cold & Light  
#4 Water & Light Lightning & Dark  
#5 Air & Cold Earth & Fire  

Table below shows which habitat you should put each type of hybrid in. so example a Earth plant hybrid should go on an earth habitat.

                                                                                       

  Plant Earth Fire Cold Lightning Water Air Metal Light Dark
Plant X Earth Fire Cold Plant Water Air Metal
(opposite)
Light Dark
Earth Earth X Earth Earth Earth Earth Earth
(opposite)
Metal Earth Dark
Fire Fire Earth X Cold
(opposite)
Fire Water Fire* Metal Light Dark
Cold Cold Earth Cold
(opposite)
X Cold Water
or Cold
Air or
Cold
Metal Light Cold*
Lightning Plant Earth Fire Cold X Water
(opposite)
Air Metal Lightning* Dark
Water Water Earth Water Water
or Cold
Water
(opposite)
X Water
Air
Water* Light Dark
Air Air Earth
(opposite)
Fire* Cold
or Air
Air Water
or Air
X Metal Light Dark
Metal Metal
(opposite)
Metal Metal Metal Metal Water* Metal X Metal Metal
Light Light Earth Light Light Lightning* Light Light Metal X Dark
(opposite)
Dark Dark Dark Dark Cold* Dark Dark Dark Metal Dark
(opposite)
X

Notes on table: if it says (opposite) there is no avoiding a +/- unless placed on a neutral island, I've listed which of the 2 habitats is preferable based on money capacity.
* means you want it on that island, but using the other habitat if you have 5 to make it worth while. Example a light/lightning hybrid has to go on the lightning island but if you have 5 you can place a light habitat on the lightning island so you get better cash from it.