This is something I have been wondering for a long time. When you spell (out loud) words that have some consonants doubled, you can say those as "double-X", or not (e.g. Allan: "Ay double-ell ay en" vs. "Ay ell ell ay en").
What interests me is, is there any sort of rule as to when to use the "double-X" and when to simply pronounce the letter twice?
This question also creates a personal dilemma: how to spell my own last name. :) It is a Balkans name, "Bolla", and I personally always used spelling: "bee oh double-ell ay". No one ever told me it was bad, yet is it better than: "bee oh ell ell ay"?
Thanks in advance, i do not know any native speakers and I don't get to speak English that often to find answer anywhere but on the internet. :)