At the end of the day you're reliant on RNG procs. A better ratio weapon will give you more aggro per swing and each proc will give lots of hate. You can choose to go higher dps and lower overall aggro or use aggro weapons and get spiky threat. It's just the life of a warrior. One nice thing about tov / raid weapons is they'll have a much nicer ratio than what you can get otherwise and come with those fancy procs.
Since you're not at that level you have to make the choice of low steady aggro or spiky aggro.
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Butchh | Facetious | Knockers
Jayce | Briefs | Squash |