Welcome any/all "new" avast! users!
I've been using avast! on-and-off since 2002. I've used all the other free ones (and some paid) on my home PC from time to time but I always seem to come back to avast!
If I may misquote .: Mac :.
"avast! is not perfect, other AVs just make it seem that way."The resources are something you can't compare as AVG have some resources being used at kernel level and they don't show up on the task manager attributed to AVG, but they are still using resources.
Part of AVG 7.5's speed was because the resident scanner was inside the Windows kernel but I think this is no longer the case with the rewrite to 8.0.
I don't know why companies feel the need to mess with a proven product... AVG adding Anti-spyware to their product (AVG-AS will not be supported past the end of this year). McAfee did the same thing when they changed VS-7 to 8 and beyond. That's why I left them 2 or 3 years ago... didn't like the 'bloat-ware'. I first started using McAfee when it would fit on a floppy!
I'm a little concerned with avast adding AS and rootkit detection. We'll see how that goes.
In a "past life" as Service Manager for a highly-respected Swedish industrial equipment manufacturer, one of the strongest lessons I came away with is that there is no product more beloved and praised by your customers
than the one you've just replaced! Seriously though, avast! 4.8 detects both viruses and spyware with one scanner. AVG 8.0 has incorporated AVG AS (Ewido). On-demand scans are separate tasks. I'm pretty sure real-time is too.