It really depends on the shaping of the tanto for me. Something like the Recon 1 blade is just stupid looming (I don't plan on using a folder like a spear, so the thick stabbing tip is just dumb looking), but I have also seen tanto blades where the tip edge is almost half the length of the primary edge, giving it an insanely thin tip and, again, really stupid looks. A nice balanced tanto done how Emerson does it is fine with me.
Now for real tantos, I love a nice gentle slope to the tip. I don't understand why some tantos are done to look like a skinning blade, where the slope is so abrupt there is almost a corner. A tanto is designed for piercing, the tip needs to be nice and thin (like the CRKT Hissatsu but without the corner). It almost needs to be like a heavily modified Wharncliffe.