I had the Bridgestone Dueler H/P Sports (not run flat) on my 2004 X5 and I liked them a lot. I had the Michelin RFT's on the 2011 and while they were quiet other things drove me insane (horrid tramlining) - so I ditched them and went to the Bridgestone Non-RFT's I had left over from my 2004.

I have new 20" wheels coming (Style 259 from X6) to put on and I'm on the fence about what to do as well. I like the Bridgestone Dueler's but have leaned towards the Michelin Latitude Tour non-rft's as an alternative. I will have my 18" wheels as my dedicated snow tires so not having all season tires isn't a concern.

My experience with non-RFT Bridgestones on our 325 and my 3 X5's has been nothing but flawless. We had bridgestone RFT's on the 325 and they were crap.

My .02 cents.

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2007 328i Sport, Monaco Blue
2011 X35D - sold -Space Grey
2004 X5 4.4i - sold - Kalahari Beige
2001 X5 3.0i - sold - Pearl Beige
2006 325i Sport, Sonora Beige
2000 323i - sold - Sienna Red