Depends on personal preference really, I personally think the Chus are better (They have more "bite" in the lower treble region which I really like at the volumes I normally listen to) but you will have plenty of people disagreeing here.

Of course statistially speaking the Chus will likely be the preferred ones (Strictly sound wise) over the audiophile population if we go by the Harman research since they deviate less from the target, that doesn't really mean you specifically will prefer them though.