Who should sponsor if both are working?

[Prachi]

Hi,

I wanted to invite my parents to US for a visit.

My husband has been in US for 8 yrs, I have been here for 2.5 yrs now.We both have GreenCard.

I am working for 2 yrs.So both of us are working. Who should sponsor the visitor visa?
1. Me?
2. My husband?
3. Or both?

Any idea?

Thanks,
-Prachi

[Murali]

Any one of you , prefferably by you being a daughter.