I definitely think the EL-VEER-UH pronunciation is much prettier than EL-VY-RUH. With the former it sounds sweet and soft, while the latter sounds harsh and rather unpleasant, though this is simply my interpretation and I mean no offense to anyone with this name! Both are very unique, and I'm sure there are others that prefer the other pronunciation!
https://ru.wiktionary.org/wiki/%D0%AD%D0%BB%D1%8C%D0%B2%D0%B8%D1%80%D0%B0