I got bridgestone dueller H/P sport on my 4.8is and have 10k on them so far, they are amazing in dry and wet conditions, great in high speed turns (slightly more roll than the diamaris though at high speeds) low noise and so far no issues with tread wear.

Not so great in snow though and would'nt recommend driving them in snow, I would highly reommend them if you do most of your driving in dry/wet conditions.