what works better? wireless USB or a wireless adapter. I just made a new desktop and need a WiFi card. Historically I've used a wireless adapter in the past, I've never used a wireless USB, so I don't know how good they are.
As Vassago comments there isn't too much difference between the two regarding performance. USB sticks are more flexible so are definitely recommended. Just make you invest in a high quality adapter or USB just in case you do have problems and need support.