Good day

I hope someone can help me a bit here.

We have a 11 month old Staffie.
He is currently on Hills science plan,but does not want to eat the food anymore(he loves eating).If we give him stuff with it he might eat a bit.

We have been thinking of changing him over to other brands.
People have said we need to put him on Omega,Jock or Montego Karoo.

I have tried reading up on these brands,but are not sure what to choose,especially about the Montego (a lot of bad reviews).

Can someone please help me out here.