But that aside, and I haven't even voted here (until now) because I don't think it's much of a debate.
I like Kanter. He has very good skills near the bucket and a nice touch in general. Every time I see him play though, he looks a little lazy and slow all around. Scoring and rebounding will never be a problem for him, but I question so-called intangibles, as well as physical aspects that combined with motor, give JV a huge advantage. I see Kanter being an Al Jefferson type player at best....good post scorer and rebounder....but a pretty mediocre defender, who doesn't have great length or speed.
JV just has many more tools all around, when you also consider the physical and intangible advantages. JV has the skill set, and body-type, to play so many different styles. He is an aggressive player at all times, and he tries hard on D, having made noticeable improvements within the season.
So basically, if you assume both players would put up something like 20 and 10 (in a best case scenario), then I take JV, because he'll do more other things that both do and don't show up in the boxscore.