New
#1
...1.WPA2 is the improved version of WPA
2.WPA only supports TKIP encryption while WPA2 supports AES
3.Theoretically, WPA2 is not hackable while WPA is
4.WPA2 requires more processing power than WPA
Strongest for home users - WPA2-AES with a random passkey of 13+ chars and a random non visible SSID, also disable WPS, (Wi-Fi Protected Setup)
WPA-802.1x is best but needs dedicated "RADIUS" server for authentication - not for the feint hearted :)