One of the things every astronomer will tell you is that Sol is an average star. Average size, average age, average everything. However, after 6.0 patch, Sol is pretty much the single biggest star system in the game. It is very hard if not impossible, to create a system with more objects. You may create a system with, say, more planets or more moons, but a system with more planets, moons and asteroids at once? I don't think I have seen one yet.
Which is why I think the system generation algorithm needs to be updated so that very large systems, sometimes with 20 or more planets, are generated in some numbers.