Obviously with tires there are always tradeoffs. Most of the time better handling = less treadwear. In my experience, any significant difference either way results in the other side of the equation getting much worse. More often than not, tires that deliver the best handling are not very good in the wet. If you want much improvement in handling I suggest addressing that independently with suspension upgrades or increase the footprint and rim width.

__________________
X5 4.6 2002 Black Sap, Black interior. 2013 X5M Melbourne Red, Bamboo interior
Dallas