Hi drhayden1,
Well your taste of scanning is excellent, Kav has the best to none update rate, DrWeb is also pretty close at a good second place, sometimes once in a while I will have the latest free scan with the stinger.exe scanner from MacAfee. My experience is that Bitdefender from Romania is not a bad scanner at all, actually I like this beast very much, best online scanner in my option, but it is also the feel of it.
I have ClamWin on a USB stick as a non resident because it has quite another group of av people open source volunteers) working on the daily based definitions, so this would almost cover the whole range of the malware spectrum.
Spyware scanning goes with Ad-aware, protection from SpywareBlaster, and the regular sweep from Webroot Spysweeper. and on suggestion of Bob3160, who gave me some very good advice occasionally, the gmer rootkit revealer, a Polish proggie.
Sometimes I use other scans for various reasons SmartDreck, HijackThis etc. toolbarcop, and I leak monitor my Flock and Firefox browser lately as I always have been recommending in-browser security, the use of the DrWeb in-browser pre-hyperlink scanning plug-in was basically introduced here by little old me, I even asked DrWeb to make a Flock version, and I got it from Eugene Kouzmin, the developer within the fortnight. Very original & creative people those Russians are, serdecni ludzi (friendly people) Russians. Well that is it in a sum up. Stay secure my friend and keep the malware out,
Damian