Professions for DPS Warrior

Hello, simple question today:​Should I go Mining+Blacksmithing or Mining+Engineering on dps warrior?I've heard a lot of contradicting opinions, some players prefer blacksmithing beacuse it's obvious pair for Warrior with mining.On the other side, I've heard that Engineering is major dps increase in raid scene.So the question stands: Which one is better for mainly PvE dps warrior? Some pvp might be included.