Which boy name goes better with?

Deborah Ann(McClain)?? I'm helping my aunt and her husband pick out a boy name. My aunt and her husband are having twins. They know they want to name the girl Deborah Ann(McClain). My uncle likes: Tyler Lee(McClain). My aunt likes: Alexander Richard(McClain). The twins would be: Lex and Debby. Or Ty and Debby. Which sounds cuter??