magma doesn't go past 1500'C and lightning is 30000'C (5 times hotter than the surfuce of the sun) since Ace got burned by mamga, that means Enel can burn Akainu(this is regarding haki)Not this again...
Yeah the Goro Goro no Mi is probably the strongest Logia. But Rubber INSULATES electric currents, so Luffy would remain unaffected. No asspulls, just an exaggeration of real life situations.
For Enel to defeat Akainu, firstly we would need to determine the temperature of Enels lightning, as it can range from approximately 30,000°C to approximately 6,000°C. Magma temperatures range from between 1,500°C to 7,000°C. So depending on the temperature of the Lightning he could stomp Sakazuki (DF's alone) OR be stomped by Sakazuki (DF's alone).
Next Enel will need to have Busoshoku Haki on the same level as Sakazuki (or higher). As far as we know Enel cannot even use Busoshoku Haki, so basically he can't harm Sakazuki and therefore under no circumstances; win. I also have suspicions that the Admiral tier characters all have superior Kenbushoku Haki than Enel anyways.
Enel is better at observation haki because his fruit enhances it extremely he could hear and sense every person on skypiea