Not only in our earth but in complete universe we can not find any creature more powerfull than Allah, Becuase ALLAH has created all of them. From the micro organisms till the macro organisms, All are some how dependent to Allah. The complete universe shows the power of Allah. The sun rising each morning is a sign of Allah's greatness.
The clouds, winds, rain, mountains, the huge sky are the proof of Allah's greatness.
The insects which is a creature of Allah, is so small that we can't catch it with hands but it can walk, eat and do many other thing. The scientists made a chip, they said we are power full because we made a small device which can contain billions of data, But Allah created the human mind which is the most powerfull memory in the world, and it is the size ofa small ball.