I did pretty badly at first, then found that kangaroo's are all you need.
I had two kangaroo's, and Cyrus.
Cyrus has 4 moves and can find material, but not important.
Kangaroo's have 7 moves, if whimsy works, if it doesn't, restart.
That's 18 potential moves.
When a Roo finds a tree with it's favorite fruit, it can get around 8 of it.
I ended up with 22 days worth of food, which was 22,000 points, plus cleared the stages days early, for a massive score on advanced mode!
I've been trying this trio as well (except replacing Cyrus with Deli (same ability, Deli's favorite food is bananas so he goes to palm trees for food) and I say that it's been working very well for me! I just played 3 intermediate levels and all in a row I got target scores which I needed to count for the trophy. I recently just got my good-luck charm from completing all the levels, I just haven't gotten all target scores. Having the trio only needing one food a day for each animal really helps rack up the points and make it easier to get the target score, and with the whimsy moving so many spaces a day I end up getting off the island fast which is 5,000 per day. i might try 3 whimsy!