znams if you equally like the design of 8 and XR, then I would take 8. For me, it would be decisive for 8 poor frames and bangs, the presence of 3D Touch and the price is lower. The presence of A12 and a little better camera is not important for me. The performance of both is OK, the cameras of both are not the best. I do not see the point of overpaying.
I rarely appear on the forum, I answer for a long time in QMS.