Which match type should I use?

This question depends on the campaign structure and how other campaigns are structured around it. However, here is our rough rule of thumb. You may disagree, but this has served us pretty well.

SKAG campaigns - use exact only. STAG campaigns - use phrase and exact only. 

Google is starting to really push you using broad match. If you do this, make sure you are constantly negative matching your keywords that they are matching for and don't convert or have no relevance.