>>56928593Ideally the entire team should gather favorite berries, but you can sometimes make exceptions.
BFS berry specialists are most important by far, and instrumental to each island.
Ingredient specialists, favorite berries is a perk but your priority should be stocking up on what's needed for the best dishes you can muster. Ingredient gathering game changes a lot when your team surpasses level 30.
Skill specialists, depending on which skill, it doesn't really matter because their priority is strength gains directly or indirectly through skill procs. Energy for Everyone users in general provide far more by keeping the entire team juiced, than actual berries gathered by themselves.
You don't necessarily need full type coverage on a given island, either. The real advantage of that will be a diversity of ingredients gathered.
In any case here's BFS berry specialists you want to prioritise for each island:
>Cyan BeachFeraligatr
>Taupe HollowTyphlosion, Ninetales
>Snowdrop TundraHoundoom, Walrein
>Lapis LakesideMeganium
>Old Gold Power PlantRaichu, Banette
Also, if it comes to pass that you have a really, really good BFS helper and you arrive at an island without specialists, you may want to run that helper by virtue of high level, so you can still build strength whilst you ready a new team.
I used to regularly run a level 50+ BFS Raichu on most islands, since it was on-par with level 30ish BFS specialists thanks to sheer helping speed.
If you're in doubt, use the "Pick a Team" function and it'll tell you what your top 5 berry gatherers for your current island are. This'll fast-track strength gains, at the expense of levelling up a more suitable team.