Guile as "gweely"
Ryu is "Raiyoo"
Not related, but I once heard someone pronounce "anime" as "aneem", two syllables. That one took me a while, literally 20 seconds to translate into human. I couldn't figure out WTF he meant.
When working at a game store a kid once asked "Do you have THPS3 for PS2?" He pronounced it just like I wrote it. He wanted Tony Hawk 3, but instead of saying that he had to say it like a video game magazine writes it out.
Then there is SHMUP, which is ONLY acceptable if you are writing an article in an European Amiga magazine in 1989. f*ck all dipshits.