Paints I Recommend:
Golden Artist (and OPEN)Acrylics
Atelier Interactive Acrylics
Grumbacher Academic Acrylics
Apple Barrel Acrylic Paint (PLAID)

Paints I don't Recommend:
Winsor & Newton Artists Acrylics
Daler Rowney System 3 Acrylics

Paints that I have used and think are okay:
Winsor & Newton Galeria
Dick Blick Artist's Acrylics
Grumbacher Artists Acrylics