Della was definitely Scrooge's favorite niece, so much that he gave her the world (and literally a trip to the moon at that!) I like to think she actually got goodies around the holidays and her birthday (in private of course so as not to make Donald jealous) and would take her to business trips a lot, hence her go-getter personality.

Is Scrooge very much the type of man she likes? Definitely, her baby daddy doesn't matter cause he's nowhere as pampering as Scrooge 😤 He is still very much her own sugar daddy on occasion lol