My husband is spoiling my kids but not his (biological and adopted)

My (28F) husband (33M) has two (10F and 7M) kids (now my adopted kids) from his previous relationship. My daughter (7F) and I joined the family about 2 years ago. She has never felt like anything else than his daughter, and he really has been an amazing father to all the kids. I don't really have any real problem, it's just something that keeps bothering me, and I would like to see other perspectives.<br><br>The problem is that my kid is having a way more comfortable life compared to his kids. For example, she's been sharing a room with his daughter, and last month she asked for a room alone, and I asked my husband if it's okay, and he said yes, so we are going to make some changes in the house. His daughter has been asking for her own room for about 2 years, but that was a no without having to ask him. <br><br>Another example is toys. I give my daughter very good quality toys, and she keeps them, while the other kids have to share or swap the toys occasionally. My daughter is very easy to care for, she's very responsible and always keeps her things very organized and tidy. The other two are a lot harder to handle, both are very hyperactive, and one has ADHD. He tends to say yes to my daughter's requests more easily than say yes to his kids.<br><br>I know, this is not fair for him or his kids. She's not spoiled like some kids I've seen, but she does have a more comfortable life compared to his kids. He always says yes to her, and I find myself saying no first, and then talking to him and getting angry. I love all three kids, and it's very frustrating to see this. I asked him to be more careful with his answers, but he still tends to say yes.<br><br>Please let me know if you need any additional info.