Don't marry this man.  I always say you get divorced if any of the three A's are present;  Addiction, abuse, adultry.

He's an alcoholic.  If he won't seek treatment then you need to get rid of this guy.  

It also sounds like he has differing morals and values then you.     https://markmanson.net/love You need to read this.  

I see nothing attractive about an every other night drunk. He may have a well paying job now, but sooner or later (most likely sooner) his drinking is going to impact his job. When he loses this job are you going to support him?  If he has bad credit, I bet he has no savings to fall back on.  And speaking of credit, remember if you marry this guy, you could end up responsible for his debt. 

Take two kids to the store, buy a treat for only yours. Offer leftovers and treats to your child first. Let your child pick the take out entrees. He's a great Disney dad to his kid, but not a great or even good stepdad. 

Do you really want to live the rest of you life with an alcoholic guy who is not financially responsible and not kind to your children? 

Don't marry someone if you can give a list of things that are red flags to you. None of those things will get any better after marriage, only worse and harder to deal with.

Dont marry him.  You are already losing respect for him.

Don't marry him and get him out of your house asap. He's selfish and unfair, and that's not good for your kids.  Plus #6 is an absolute deal breaker.  Get yourself and your kids out of this situation.

Your fiance is an alcoholic with bad credit who is mean to your kids?  He needs to become an ex-fiance and he needs to get the bums' rush out of your house, ASAP.  

There isn't a positive thing you have listed about him. 

For me, it isn't that he favors his kid- that is natural. However, ignoring your kids is another story. Being a drunk is another story. Remember, this is a man that you will be teaching your daughters is the partner they should expect or even try to find- is that what you want for them? A fall down drunk with crappy credit who makes women and girls in his life feel devalued? 

DH and I have separate accounts, there is no issue with that. We were both burned and we feel comfortable- however, we both give freely and openly to our family and each other. If I ever need extra cash because I made a huge Costco run that week or something, DH writes me a check without hesitation. When SS needs new clothes or shoes, I don't even pause to take him shopping. There is still a sharing and giving of our finances even if they aren't combined. 

This man does not appear kind, giving, protecting or any of the other traits all women deserve in a partner. I would rather be alone than with a man like you described above. 

It's kind of funny that the MOST important things about this guy are what you post last.

The fact that he spoils his child.. or that he doesn't spend his money on your kids is actually "fine".. he doesn't have to spend a nickel on your child... it might be "nice" to buy her a piece of chocolate.. but whatever.. he doesn't have to spend his money on your kid.  It's your responsibility to buy your child a car too.. that he spends his money on his kid.. also fine.  if it's his money and he is paying his share of joint bills etc.. that's also ok.

Where the problem lies is that he is a drunk with poor spending habits and bad credit that is not a particularly a nice guy. (if he could afford to buy your daughter a candy bar.. why not be nice?  unless your daughter is a witch to him?)

You have a man who keeps his finances and actions from you too... 

There is not much about him that seems like it screams "great life partner"... I would throw him back and toss your line back out.. or perhaps do some self reflection why you picked a man who doesn't value you.

Time to break the engagement.

3, 5 and 6 would be the most problematic for me. The other stuff is annoying and hurtful and he sounds like kind of a dick. Who would be able to buy one child a treat and not the other when they're right there? I can't imagine my husband doing that when we've taken his kids and my niece and nephew out. 

3. Why are your bills 50/50 when he makes 3x as much money as you? NOPE. 

5. It's his money, but WTF! 

6. He sounds like an alcoholic. I was with a functioning alcoholic for over a decade. RUN!

Get professional help if you can't end this on your own. If you're listing things you know there are serious issues. Consult a clergy, local counselor etc ASAP   

I agree that if you have that many red flags that you shouldn't marry him, but considering this is a rant, you're not going to tell us how much you actually love him. These are financial red flags, but if you and he have an agreement that it's his money and your money, then you can't be upset with him for not informing you where the money is going. You said that you split the bills halfway, and as long as he's paying his way, why do you care what he spends the rest of his money on. If it bothers you, then you should tell him. Marriage is about compromise and communication. How is he supposed to know you have a problem with it if you won't tell him. If you discuss it with him, and you cant come to a compromise, then the relationship won't work.

I do have to say, getting upset that he spends money on his daughter, just because you don't choose to spend the money on yours, is a little petty.

Imagine for a moment you get married to this guy. Say you've been together awhile and you still see the way he unfairly treats your daughter. Now think about what would happen to your daughter if something happened to you and he became the one to take care of her. Can you trust him to fair and treat her kindly? No it would be a nightmare for her. If its already happening now then I'm sure he's done or said other rude things to her that you don't even know about. For the sake of your daughter get away from him and don't look back.