THE STIG!!! HAHAHHAAHAA!!! I might be the only one here that gets the Top Gear reference!
One of my Blops allies was Velvet Elvis, a former member of mxs was Zaboomafu, (we still have the weird precidence of many members with african/south american names, including our new recruits from Ecuador and Brazill)
I can't really think of that many offhand with good names, but that's because what they have in their name they usually lack in skill.
Myself and a number of the CCP guys have an ally we met in pubs that's really an awesome dude named Like an Employee.Lawl. Then I had annother blops ally Seven Nation Army, if you know the musical reference.
I've chatted to a guy a few times who goes under Paki Rambo, he was sick of being thrown into lobbies with and getting hassle from a bunch of EDL, racist types for being Asian so chose the name to piss them off. I've actually played the guys he was talking about and they're a nasty bunch so that's why it's my favourite, I just imagine the rage on their faces every time it comes up on the killfeed and it makes me chuckle. Other than that you can't beat a good Mike Hunt or Maballsa Ritchie.