I may be wrong, but neither if these knives is a true deba in that they are not single bevel knives. They are both double bevel knives w/ symetrical grinds. In some of JKI's vids, Jon mentions that in some regions, knife makers only make double bevel knives, but that seems an exception.
IMO, Takeda's are WAY over priced for what they are, but they get a lot of love. Lots of love for Carter's too. Out of the two you mentioned, I'd definitely go w/ the Carter.
If you want a true deba, for that kind of money there much better options that some others can point you towards. Some folks feel a deba is a knife that will take abuse, therefore don't spend a lot of money on one. Then there are folks that feel a deba is a key knife for Japanese cuisine where cleaning and filelted fish is of the highest importance, and a quality deba is essential. No other knife can fillet a fish as cleanly as a deba.
If you aren't looking for a true deba and want a Western deba for heavy duty work like hacking up chickens, etc. I still think there are more cost effective options.