Hmm , I used all these video recording software back at the time.
With FRAPS (currently using), you're able to delete your recorded video, without having to remove the video on the video hosting website. I don't know if it can do that in all the versions, but for me it saves space.
I've used Bandicam for a few months or so, it was ok. I don't think I could be able to delete my videos though, but this is just from what I've seen.
Xfire was a piece of shit. But it was an ordinary piece of shit. No, it was alright, but I didn't have any sound so I ragequit.