Tunnel Gear - Warrior Weapons

[zelld52]

First time being serious about a warrior means I'm thinking about aggro weapons; should I be lucky enough to find groups while levelling. I currently have Swiftblade of Zek, Frostbringer and Wrapped Entropy Serpent Spine.

My intuition tells me that the Swiftblade + Frostbringer will be my best bet while levelling 30-50s. The 11 damage and fast delay of Swiftblade will generate me white damage threat, and the Frostbringer proc is nice bonus for offhand threat. (Once level 40, that is)

When I start to approach 50s, will it be better to switch Swiftblade out for WESS for that mega-threat from the long-duration blind? I imagine I'll need more than Swiftblade white damage threat when there's epic rogues backstabbing.

Or, should I just stick with the Swiftblade through until I get a leet DKP weapon like Trident or something, once the warrior is in its 50s+?