Generically, is it better to go with how it's pronounced and I will more readily recognize, or to try to match spelling which often sounds weird and I may not answer to?
Katakana only cares about sound. Whatever relationship we find between Katakana (and, for that matter, Hiragana) and English letters is only incidental through how English letters often create those same sounds. There is no deeper relationship to warrant emphasizing English spelling at the expense of pronunciation.
I'd go with アオベン
Besides, it's your name; of course you want the one that you most easily recognize.