Is a380 or 747 better

It's hard to say, and it's a question many airline operators are facing as their current, long-range, wide body fleets are aging. You have to consider things such as: cost of each plane, fuel costs, operating costs, airports that can handle an a380, cost of replacing old planes with the new vs. maintaining the current fleet. There's also pilot training time and costs to consider. Current 747 pilots need little retraining if they move on from 200-400 series 747's to the 8i. If they move on to a a380 however, they have to relearn. Even a current Airbus pilot will require considerably more extensive training for the a380.