Your freind is better. At Anti-Tanking too. I don't know why people are saying that you both suck, if he asked "are me and my freind good?" then you could say that. He's asking for a comparison.
Anyone can get good stats. If you want good stats do the following:
High Jet KDR: J10 on Wake or Dalian
High Chopper KDR: PLA on Wake or Dalian, Helicopter on Sharqi.
High Armour KDR: Armour on Karkand/Sharqi/Jalalabad/Mashtuur/SF Maps
High Assaut rifle KDR: Medic w/G36E on IO city maps
High Sniper rifle KDR: Any map, preferably IO city maps, and especially SF maps. The Type-88 is very easy to use on Wake, provided that USMC actually get on the island
High LMG KDR: PKM or RPK on IO City maps
There, just do that if you want good stats. Don't come here thinking people will think you are any good though. It'll just get you good stats, nobody will actually think you are any good because the above is pretty easy to do. Except maybe using the Choppers, that really depends on who you're against.