Tekno Neu 1515 2D or 1Y?

[padrino]

I have been running a 1515 2.5D in my e-revo for some time and like how smooth the motor is. I understand the difference in concept between the winds but don't know if the Delta wind is the reason it is so smooth, maybe it's just my imagination but I was hoping someone can confirm.

I am thinking about getting a motor for another e-revo build coming up soon however I am not sure if I should get a 2D (2050kv) or 1Y (2200kv). If anyone has suggestions please share.