I'd say ghost. The AN-94 is a nice weapon, but its not godly or anything.
I took ghost, an-94 and the skorpion my third time.
I regret the skorpion choice though. It doesnt seem good enough is the lag compensated envoirnment, it shoots so fast its like every 5 bullets get a hit marker or something. The MSMC is so much better when it comes to sub mac guns.