I travel with my wife and kids at least 5 times each year. 1 Disneyworld trip, 1 beach trip (Hawaii or Caribbean), 1 Europe, 1 Asia and 1 cruise (family reunion). My children usually accumulate around 30,000 miles each year, enough miles for Silver on United. I use their miles to redeem awards for upgrades or a free ticket for them. I chose United for our family airline because of the 777, 747 and A380 LH. United and the *A gave me the best opportunity to fly my family on the largest or newest aircraft, which they enjoyed. Now that UA will no longer offer 100% mileage accrual for 2012 low level flyers, I feel it's time to switch my family travel to AA so my wife and children can continue to receive 100% mileage credit for all of their flights. My children are unable to do an AA Gold challenge during the school year. They are Silver on UA. Do you think it's a good idea to move their flights to AA? I'm EXP, 1K and DIA.