Definetly go with rock sliders. I have nerf bars right now and they somewhat protect the tub. they dent up pretty easily though. I'm going to get rock sliders soon, but these work for right now.
'06 Rubicon, 4" Currie lift, Anti-rock, Sniper fab tube fenders, Smittybilt crusher corners, custom rock sliders and front and rear bumpers, Smittybilt XRC8 winch, F&R Riddler diff covers, 33 engineering t-case skid, Rokmen gas tank skid, 2" BL, JKS MML, 35" BFG KM2's, 15x8 Cragar soft 8's, RCV CV axle shafts, Currie steering, Viking top, U-pol raptor lined tub, and more to come...