They are both shit.
My dad was the active in his terms parents to me and my brother from his marriage to mam, he had a child with another woman and had zero involvement.
Dad died and we've got in touch and we've tracked down our sister and while it's great getting to know her Dad not being around at all for her has hurt her just as much as him being an inconsistent to us has hurt my brother and I.
We talk about him as she has a lot if questions about him, he's not here to answer so she only has us to ask, and it's hard talking about him as I dint have any nice memories about him, but on some level I think that while I'm hurt by Dad, I knew him, I knew who he was, she doesn't have that and will always wonder why he stayed in our lives, after divorcing mum, why he walked away from her and went on to have another child and bring his stepson up as his own, she's a brilliant young woman whereas I am nervous wreck and I often wonder if I had her life I wouldn't be so fucked up, but she also says she often wonders if she had my life she wouldn't have all these questions and feelings of being not good enough.
She's always known about us, her mum was always honest with her, and while she's chuffed to bits to have a big brother and sister I think it's sometimes hard for her because we remind her of what she didn't have if that makes sense, that he cared enough about us to at least pretend to be involved.
I used to think a dormant one is better, the mum doesn't have to deal with broken hearted dc when they've let them down, they can't be manipulated via child support etc but after meeting my sister I do think both are just as hurtful.