Drove them both extensively B4 we bought...we've had "sport" suspensions for decades...but some are just a bit too harsh. X1 sport is just great in our opinion..less body roll, a bit stiffer and more planted. In 2017 all it consisted of was stiffer struts/shocks and rear sway bar.
Once we got past the higher seating position and feeling of "cumbersomeness" that comes with our first SUV..it feels good driving and the turbo is a big plus on 2 lane road passing for sure!