I was pondering a larger point earlier to blog about and thought of the pronunciation of the name Magneto as a side point. Sadly, I am currently unable to remember the larger point.
It wasn't until relatively recently that I learned how widespread the desire among Marvel Zombies to pronounce his name "mag-NETT-oh" is. All I can say is, "Just stop it!"
In English, a vowel followed by a single consonant and another vowel is pronounced with its long sound. Period.
The supposed logic is that his name is derived from the word "magnet", which is, indeed pronounced "MAG-nett". However, the actual word magneto, pronounced "mag-NEE-to", is, unsurprisingly, also derived from the word "magnet".
Your argument has no base.
Ok, I read someone say it sounds dorky. I guess I can give you that, but you are reading a comic book created by Stan "The Man" Lee and Jack "King" Kirby. That's part of the fun. Reading comics is supposed to be fun, right?