Rehab or just pay off and be done with it?

[Theirmomma]

I have two federal student loans in default totaling $3300. 
 

They are giving me the options to rehab, settle or consolidate. 
 

I know rehabbing removes the delinquent status after 9 months but I also will still have the original Fed Loan Servicing charge offs showing on my credit. These accounts opened in 2014. 
 

So my question is does rehabbing help my credit score or should I just settle and have it shown as paid collection and be done with it? 
 

Thanks for your help:) 

[hegemony]

what is the DOFD for these accounts? If it means you are near 7.5 years of negative reporting then I say PIF and move on.