For pure cats, going for pure HP is not really useful because two of the main attacks (Volley Kick and Two Hit Combination) requires massive amounts of either AP or HV. Most cats would choose AP, but its recommended to choose HV because it allows you to dodge, do more damage and hit harder with your debuffs.
Going pure HP would be semi-useless for a pure cats because they don't use Siren Song much anymore. Siren Song is just too unreliable to be depended.
If you want to tank much, going pure HP raccoon would be way better than a pure HP cat.
^ Khmer2k1d5, Sumo Suit (Fatty Shield) allows you to hardness the power of sheep.. I mean, reduce damage by 44% xD
This is Kyuubey