Last year, Charlie Garner had the most receptions for an RB with 91. Faulk had 80, LT2 had 79, Holmes had 70, and Barber had 69.
Yardage-wise, Garner also led the bunch, with 941 yards. Next was Holmes with 672, Barber with 597, Duce Staley with 541, and Faulk with 537. (A quick note, Duce will probably have less receptions and yards this year with the reason of Buckhalter).
Garner also had the most receiving TDs with 4. If you get rewarded for big plays, he also had the most 20+ yard receptions and the most 40+ yard receptions.