On days when I want a full-coverage, long-lasting, sweat-and-everything-proof base, I go for this combination. The Studio Fix line by MAC is famous for a good reason.
The Studio Fix Fluid foundation is a medium-full coverage, oil-proof formula, that lasts on the skin all day. If you have dry skin, consider a hydrating base and setting spray. I buff it into the skin with the 170 Synthetic Rounded Slant Brush.
The Studio Fix Powder + Foundation is a medium coverage powder, great for oily skin. Same recommendation applies: if you have dry skin, consider using a hydrating base and setting spray. I use the 150 Synthetic Large Powder Brush with it.
Have you tried these products? Let me know in the comments below!