Giant Or Webroot

I have tested both GIANT AntiSpyware and Webroots Spysweeper.. But I don't know which one to keep.. Nor do I want ot have both… I just want your opinion as to which you prefer, or just the things you have heard about them. . . Any input would be greatly appreciated, thanks. (If needed further information do let me know)

some reading material:

http://www.spywarewarrior.com/asw-test-guide.htm

Thanks

http://forums.tomcoyote.org/index.php?showtopic=22670&hl=
Helped here.