Need some advice on tires. I have a e70 2007 X5 premium, sport, tech, etc. I have an opportunity to chose from 2 sets of tires and rims. Both sets of tires are on style 223m rims staggered (255/50/R19 & 285/45/R19). The 1st set have Bridgestone Sport Duelers RFT's and the 2nd set are wrapped with Continental Contact SSR's. Appreciate your thoughts and or experience with these 2 different brands of tires.

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2016 35i M Sport on the way
2007 4.8L Premium, Sport, Technology, Cold Weather and Rear Climate Package with Rear DVD, 3rd Row and 223m V Spoke Rims
2005 325 Ci
2000 323 Cic