Kaspersky AntiVirus 2010 Or Spyware Doctor With AntiVirus 6?

I Have a laptop with 320 GB space and 4 gb ram. which has better detection and removal rates, but which is lighter on my system?
Please only talk about these two. thank you in advance.

The best Spyware software is “Spyware Doctor” and you can download from Jordysoft.net.

Here is the link to the download page http://www.jordysoft.net/frmDescriptionDetailsWindows.aspx?TopMenuId=2&LeftMenuId=1&SubMenuId=0&ContentId=62

Remove PC Antispyware 2010 QUICKLY – PC Antispyware 2010 Removal