Advice on best use of miles

Hi there,
I intend to fly with the family to EWR from LHR between 24th and 27th July and back 3 weeks later.
I will be travelling with my wife and a total of 4 children (her 2 and my 2).
2 of them are now 12 so we will be 'paying' adult fares for them.
We will fly economy as the holiday will be expensive enough as it is!
I have around 65,000 miles.
My question is on the best use of these miles.
Reward flights are 29,500 I believe and companion flights are 20,000.
Can I book 3 flights and get 3 companion flights? What class do the paid flights need to be?
Is MPM the way to go?
Any help greatfully received.
Cheers
Tim
[:D]
I intend to fly with the family to EWR from LHR between 24th and 27th July and back 3 weeks later.
I will be travelling with my wife and a total of 4 children (her 2 and my 2).
2 of them are now 12 so we will be 'paying' adult fares for them.
We will fly economy as the holiday will be expensive enough as it is!
I have around 65,000 miles.
My question is on the best use of these miles.
Reward flights are 29,500 I believe and companion flights are 20,000.
Can I book 3 flights and get 3 companion flights? What class do the paid flights need to be?
Is MPM the way to go?
Any help greatfully received.
Cheers
Tim
[:D]