Free-range chicken might taste nicer. Good quality chicken will taste good plain but you need to spend a penny or two to get it.
But the only time I would ever consider eating plain chicken breast is if it is roasted as part of a full bird or in a sandwich...
Try chicken satay
Mix garlic, ginger, tumeric, cumin, coriander, lime juice, soya sauce, honey and some vegetable oil together. Marinade chicken in it for at least a couple of hours and cook.