Every high-ranking executive and officer in the Donquixote Family—from Monet and Trebol to Diamante and Doflamingo himself—was forged in the crucible of tragedy. Most grew up in extreme poverty, facing the wrath of society. Doflamingo did not just recruit them; he rescued them from their lowest points, giving them purpose, power, and a sanctuary. This shared foundation of being societal outcasts naturally cements their bond.

In contrast, the Straw Hats often join for distinct, individual dreams, taking time to fully integrate or integrate way to quickly for no reason. They don't even take time to talk or interact in any meaningful ways because Brook waited till Elbaph to even share his past and Robin hasn't even said a word about her conversations with Dragon, they just feel like a bunch of colleagues. The Donquixote Family, having survived on the fringes of the harsh underworld together, feels like a seasoned military unit that has operated as a unit for decades while still keeping a bit of those flaws and that uniqueness that is so unique and distinguishable for One Piece. the Donquixote Family feels more connected and feel like they traveled the Grand Line together

A frequent topic of analysis is the crew's unconditional loyalty to their captain. The executives know Doflamingo's deepest secrets, including his celestial heritage, and still view him as their savior, not caring about his bloodline ore the man he once was. This loyalty extends reciprocally among the family members themselves. Whether it is Senor Pink’s grief-stricken background or Baby 5's earnest need to feel wanted, there is a tangible camaraderie. Doflamingo cares for them just like Luffy does.

While some forum discussions point out that Doflamingo's love is highly demanding, this complex, toxic, yet unbreakable bond makes them incredibly rich. They are a true mafia-style family, willing to die for one another because their captain is the anchor that saved them from a hopeless world. and Doflamingo truly cares for them and has a warm place in his cold heart for these people, showing true sadness and anger when Vergo and Monet died, forgiving Baby 5, Buffalo and even Sugar when they failed and he most importantly actually cared for Rosinante. the last part is mostly forgotten about by the fans but Doflamingo actually cared for him and wanted to protect him, he only killed him when he found out that Rosinante had betrayed him and was a danger to his family. 

Eiichiro Oda’s design for the group perfectly balances dark, sinister undertones with distinct, often ridiculous personalities. This juxtaposition highlights a tragic reality: many of them are simply neglected, damaged children who became cruel adults because of their circumstances. Their absurd quirks and colorful designs contrast sharply with the grim, ruthless actions they take in the criminal underworld, making them some of the most multifaceted and engaging antagonists in the series. I would even go as far as to say that their quirks and flaws are on the same level as those of the Straw Hats, maybe even surpassing them.

please remember that this is only my humble opinion, so if you think something else that is fine, since everyone is allowed to have their own opinion on the subject.

Hot Take, the Donquixote Family feels more like a family and crew than the Straw Hats.