I don't really know if you meant that as a joke or what, but I'm the Mexican here... Spanish has been my native language all my life, I think I'd know how to pronounce a word. (Only thing I got wrong is the B/V on the oatmeal thing, other than that the word is pronounced Ah-Ben-Ah).
This is daft but ive always called them Albena, i misread the name in a review and saw it as one i knew, i soon found it was spelt without the "L" but i still pronounce it like that - ALL-BEN-AH - heck i know its wrong but old habits die hard ae
Oh and for any one who wondered Albena is a bulgarian resort town on the black sea ive been there many times, hence why the name was familiar to me
Stressing the sound at the start sounds weird to me, and putting an 'ee' sound in the middle just makes me think of Ribena for some reason. I often pronounce vowels differently to most English speaking people when I see new words. I have gotten used to the international phonetic alphabet where the five 'basic' vowel letters mean what they mean in most other european languages, instead of English.
With long vowels at any rate, English is an odd one out.