I would have said PC tools but it wasn't on the list so my 2nd best was AVG, although I use mcafee I cant choose it afetr it attacked my pc and single handedly crashed after facing a little bit of malware that took control of mcafee so i installed PC tools and it solved the issue. Now you could say i am over cautious about what mcafee does on my pc especially on glitcha, crasha or better known as ... or MS VISTA