Kaspersky AV all the way. I'll be purchasing my fifth license this weekend for a friend's computer.
1. Light on resources - Decently low memory usage. Can be completely disabled (no services running at all) for gaming.
2. Great detection - You can choose from standard definitions (viruses) or extended definitions (detects malware, trojans, keyloggers, etc). I leave standard definitions on most of the time for real-time protection. I switch to extended definitions for full system scans.
3. Email protection - Flat out deletes the common baddies (mydoom, etc). It doesn't ask first and doesn't even quarantine it - just deletes.
4. Russians are cool This comment was edited on Jul 8, 14:47.