Realtor.com vs ZIllow for leads ?

[Kareem Lyons]

Hi 

So I would just like some general advise from some agents. I currently advertise on zillow and receive maybe 20 leads a month for $150. I recently had the option of advertising on realtor.com and receiving 40 leads over 6 months for $150 a month. My question is does anyone notice a quality difference between these websites ?. 

Now I know that these are online leads so most are useless but I just want to know. Would it be smarter to just use the $150 extra a month on a different form of advertising ? .