I say "bik" with a short I sound.
Beekay
Very quick, I don't lengthen either of the vowels much.
I never discuss the game out loud (none of my friends like the game; some of them even go so far as to call the PSone and the N64 "primitive" and "crap"), so I only ever actually read the names and never think about how I'm gonna say 'em.
Bik-kay
What, so you English guys actually PRONOUNCE a final "e" sometimes?
I thought you constantly went "the word ends with an e, so let's omit the letter altogether, as usual".
In english words, that is the case.
However, in final fantasy, a game developed in Japan, many of these names are created by japanese programmers/writers, and some english speaking people would rather attempt to pronounce the name in Japanese.
Hence, they pronounce the e on the end of Bikke as "ee" or "ay", or however they think its pronounced in Japanese, or however they see fit.
WICKED-AWESOME SIG.
I say bick. or at least I say it in my head. I don't know if I've ever spoken aloud about FF1 in my life. Well, actually I have, but that was to discuss how to pronounce GrOgre.