well, if we'e gonna get technical, the force of Gravity is the weakest of the 4 fundamental forces. Kid's Electromagnetism by virtue should be Stronger in what Kid does (which is attract and repel metals)
The strongest force of all is by a staggering amount the Strong Nuclear Force, the one that binds quarks together thanks to massless bosons called gluons to form protons and neutrons and keep them inside an atom's nucleus, even protons amongst themselves overcoming their equal charges (between protons).
Electromagnetic force is the most beautiful to me anyway. It's basically the force that binds negatively charged electrons to positively charged atomic nuclei, making sure stable atoms can form and therefore life can happen and this occurs thanks to photons intermediating the process according to Quantum Field Theory. So there's much more to this force than just the classic: "moving electric currents can produce magnetic fields, and changing magnetic fields can induce electric currents to flow".
It's a pity that no theory of everything has been found to have all four forces fit however, but in the String Theory theoretical framework that at least occurs mathematically, cause in 11-dimensional hyperspace they start to finally fit.
I'm a massive nerd I know.