you are looking at these family-sponsored preferences based on your relationships:
- third preference for being a married son of u.s. citizen(s)
- fourth preference for being a brother of an adult u.s. citizen
as of the recently posted november 06 bulletin they are processing cases with the following priority dates:
3rd: 15 NOV 98
4th: 22 OCT 95
you are better off having your parents sponsor you as your PD will come up about 3 years sooner than being 4th preference.
I would advise you to file two I-130 -- one for each parent -- right away to establish a PD. unfortunately, and I could be wrong on this, because you are married you will not move to a higher preference once your parents become naturalized.
again, I could be wrong, but you are looking at around 8 years before your PD comes up and you are able to file an AOS which will then allow you to receive an EAD and perhaps an advance parole.