Had the Duras for about 50k miles and liked them a lot for the dd and weekend trails.
Wanted bigger and went with 35" nitto Mudgrapplers (which are noisy)
Can't help with the Terra's as I haven't had them. But nitto makes a great tire and the Duras are a good dd tire that will get you through some decent trails
08 X Unlimited.Jeep Green. 4.5" AEV Nth Degree. Rubi rock sliders, LineX'd nerf bars. MotoMetal 909's. 35x12.5x17 Nitto. Billet grille. Daystar Dash, Hood Wranglers and tire bumpstops. Rugged Ridge liners,front XHD bumper. Recon 10.5, neoprene covers. sPOD. KC Daylighters windshield lights. Pocket flares by TAG. JKS front and rear adjustable trac bars. Expedition One Trail Series rear bumper, Rock Krawler arms, Evo sleeves, RCVs, 4.88s, ARBs