Your question sounds like six of one thing - a half dozen of another;-)
Both will take a lot of work one way or another, have an expense, and
hopefully a result.

I must say that rolled sod looks so beautiful when completed though.
Also, I've seen people go through all the trouble of leveling killing
weeds, reseeding, only to have more weeds come up as lawn. Sod is more
of a guarantee!

Myrl Jeffcoat
http://www.myrljeffcoat.com