Sony Xperia Z4 or Samsung Galaxy S6?

[JHop86]

This Spring I will be changing carriers and I will be getting a new cell phone. I currently have the Note 3 I even though I think it is an amazing phone, I want to get something a little smaller. I know this Spring the Z4 and the S6 will both be released, but what one should I get?

From what I got out of reviews, the Z3 is superior to the S5.

Thanks!