Rock - As of now it's probably Infinite Justice. Good amount of ammo. And the W3 on melee mode is so freaking fast. Boomerangs are pretty good too :V. And it's uber beam hurts.
Scissors - Akatsuki. Why? Well it has really good damage. It's W3 takes off butt hurting damage from Papers from behind. I 1/2ed an F91 in KR with it's 3-->2 Combo. It's melee is like a rock. And it's beam reflect isn't accurate but it kills. Especially when a GNAD shoots you and he dies. First time I ever killed someone with beam reflect...Anyway moving on...Oh before I forget. RELOAD UP.
Paper - As of now it's probably F91. It's built on the emphasis on all ranges. I just love how it's VSBR is fast. It's MG is solid and strong. It's beam rifle does above average damage. It's skills are a great combo. The boost pool becomes really large and the beam saber is rock like. It's beam bazooka is made for long range helping me survive even more.