You'll earn at least 300++ points per week if you lose all your 10 matches in 5v5.
You'll earn at least 200++ points per week if you lose all your 10 macthes in 2v2.
Tell your partner you are aiming for a high rating. If he's not keen on aiming for the top. Get a new one. Who knows you might find a better partner.
Tip : Get a druid as partner.
When I was still in 5v5, I was in combat spec and have to charge out like a warrior. My target is usually healers or warlocks. This however isn't good as combat is a bad spec for arena or pvp for that matter.