Tough to call.
Normally, I'd say TP easily, but it's launching at the end of Wii U's life, so it won't get as much legroom as WW.
Also, WWHD was more noticeably upgraded, while TPHD has more of the look of a rushjob. A lot of people have voiced disappointment over the lack of a more thorough visual upgrade for TP, and this could affect sales.