I'd be thankful if anyone could share some advice on what they think is best for me.

I live in central NJ, about 40 mins from EWR. UA seems the obvious choice due to the easy EWR drive but it seems like DAL may have better work rules. I have a young child at home and currently at corp where I get 15-18 days off a month. When I flew for the regionals I was good at "gaming" the system to maximize pay and QoL. I make around $270,000 (pay + retirement) now and getting back to that is important, but so is seeing my kid.