I’m also venth currently. I mean its the worst one compared to NF/Kyrian. (M+ wise)
But in raids its actually pretty okay-ish. Whenever you know how to min-max as venth fury in M+ its also decent as you see.
But Kyrian/NF is by far the easiest gameplay.
Just a single glance at https://www.wowhead.com/guides/fury-warrior-best-covenant-shadowlands will tell you that there are no simple ‘x is best for all’-answer. You can’t go wrong with either Venthyr, Kyrian, or Night Fae, so pick the covenant which have the most comfortable signature ability and the most tasteful Soulbind buffs. If you are doubting NF, go Kyrian. If you are doubting Kyrian, go NF.