I don't have a preference in terms of the effect on the sound but do prefer the Z-plug or BFA style banana connectors. They provide a large contact area and the ability to slightly alter the diameter to fit what are often slightly inconsistent sizes in the diameter of the holes in the binding posts across brands.
LIke this -- https://bit.ly/3kam3Ct
LIke this -- https://bit.ly/3kam3Ct