Your universe? What would that consist of? You being a 35 year old virgin who still lives at home with his parents? Collects magic cards and the closest you will ever get to a girl is your moms Victoria Secrets catalog.
The difference between the Marvel and DC Universe is while Marvel has a different character for every single cosmic event DC tends to be a little more religious based.
Marvel has Death, Entity, and Galactus who are supposed to be the three main cosmic beings (one over Death, one over life, and one that has to kill in order to stay alive.) Then there is the person in chagrge of time and then Phoenix is in charge of what will be born. Then there are the Infinity Gauntlets and the HOTU. The Living Tribunal who does his thing and then the Beyonder. Seriously there can only be so many different jobs allocated out to everyone.