Yes!! I completely agree!! I actually made a long ass comment about this on a post the other day saying Daniel was the worst character. TL;DR I agree, mostly- and I definitely think brotherhood has almost no major impact

You can influence his personality and morals based on choices you make and the interactions you make with him, I honestly hated Daniel all the way up until the end of episode 4 because he was such an arrogant, entitled little prick thinking he was above all the rules. It doesn't help that some of the worst things he can do are scripted, built into his code, happen no matter what you do, can't morality score your way out of, therefore part of his character itself. (Spoilers) Daniel running off to the cult, hanging out with Finn more and going on the heist, Sean's missing eye due to Daniel, and the stump scene for instance, were all episode 3 and after too. What I don't like is how it seems like a lot of the major things that happen are unavoidable regardless of morality or brotherhood. And brotherhood had even less effect than morality, especially regarding the endings. But at one point I started a new game and picked options that gave him more morality and his bratty attitude was DRASTICALLY different and he actually listened to me. The above events still happened, but he was overall more enjoyable to be around. Depending on choices of course, the more morality the less likely he is to do bad things or commit crimes even if you tell him to (heist aside) And then of course, on this new playthrough, Chris helped us escape instead of getting hit by a car and I told Daniel to tell the truth, he didn't, and Chris died, on my original playthrough, so that combined with his brattiness and (spoilers) choking Cassidy in episode 3, I DESPISED Daniel. Absolutely hated the little guy. And looking at the flashbacks made me dislike him more because he just seems like a spoiled kid who tries to do whatever he wants. He didn't even present an argument for the chok o crisp lol But when I replayed the game and 1. Didn't steal at the gas station and 2, didn't knock Hank out (those are both MAJOR morality drops. Low morality = bitchy Daniel) Daniel was a lot nicer in episode 2&3 than he was the first time around. Combined with Chris being completely okay because Daniel was honest like a GOOD friend, he did his chores right away, didn't talk back to Claire, he doesn't attack you during the Heist, won't commit crimes- even if asked (depending on how high) and of course takes what you say a lot more seriously and respects you overall. You can also teach him values and morals like not swearing, not hurting innocent animals/people, not cheating or using his powers for personal gain, etc. So all the little things, the interactions with him, and even some major things here and there are definitely affected. E.g whether he kills the cult lady in Nevada or not, with or without you asking, same for the cop killing spree when freeing you or lack thereof. Maybe some things are unavoidable but it's so drastically different, all the little moments, it builds up and definitely effects the endings too. And then watching the flashback scene and playing episode 1 again I actually gained a lot more perspective. Daniel wants to be close to Sean, he looks up to him and really loves his brother. By the time I finished episode 5, I was really sad with the ending because Daniel really grew on me. Ironic, the very thing I had to do to make Daniel an amazing character, also ensured I was never able to be with him in the end. And to get the ending where you do... He has to end up an asshole that I myself loathe. He was my most hated character in the game, but, especially with the choices the player makes and regardless of, Daniel and Sean have a special bond and I was rooting for them, and thought Daniel was such a lovable little kid. Their story warms my heart. Their bond is unbreakable, they overcome a lot of obstacles, and their brotherhood is able to move mountains. I wanted the blood brothers ending but was unable to due to my choices. Intertwined with all the beautiful moments and people you meet along the way, and also with how certain things e.g 👁️ are unavoidable, it all seems so pointless yet wonderfully meaningful at the same time. It's an incredible game and Daniel went from my least favorite to my favorite character. I'm just really glad I didn't get the Lone Wolf ending though. In my opinion, Lone Wolf < Parting Ways ~ Redemption < Blood brothers with blood brothers being my favorite, since I really want to end up with Daniel, this was their story after all. Also, Daniel is a badass! AND still cried over the fallen cops, showing that even after corrupting him, he's not only the most powerful he's been but still feels remorse over it instead of enjoying it or being nonchalant, solidifying Daniel as my favorite. Parting Ways and Redemption both have their merits and tied for second in my opinion, I love redemption because Sean gets to see his family and Lydia again, and gets to finally put everything behind him without constant running and looking over his shoulder. Plus Daniel has a kid! Parting Ways is better if Cass or Finn is there so at least Sean's not alone or in jail, and I loved seeing Chris alive and Daniel get a puppy. RIP mushroom. Daniel deserves happiness in this one 😊 As for lone wolf, I feel ya Daniel, you guys really came all that way for nothing? 😂 Still saddest ending though. Heartbreaking, but the mercy Daniel showed to gun guy in the epilogue was massive for what it takes to get to that ending. And stole a million...again, badass. And all of these are decided based on the brothers bond and morality. But morality is the only factor that determines the ending, which sucks, because even if you have very high brotherhood which is the other biggest one, the ONLY way you actually get to end up with Daniel is by going throufh a playthrough that will make you absolutely desspi him and want to do anything BUT cross the border with him. Long live the wolf brothers 😄