Resilience isnt really very useful in PVE, you'd do much better with a 2H weapon that boosts your hit rating, expertise, or agility.
The Titansteel Destroyer is still quite a good weapon for DK tanks, and theres quite a few 2H drops from heroics that are quite effective too, eg:
Skull-Clad Cleaver from HoL, Saliva-Corroded Pike from VH, the Hammer of Grief and Sword of Justice from HoS..
Heck, I still tank with the Whale-Stick Harpoon in Naxx-10 and Naxx-25. Its a fine starter weapon for a DK tank.
Once you actually start tanking Naxx, theres a lot of better stuff that will drop, and with any of those weapons I listed above, you should be fine to go after them.