Stayed at Las Vegas Hilton (LVH) last week. Stay was posted to HHonors with bonus. Got a room upgrade to boot (Hilton Gold) and THE STAFF WAS FRIENDLY. Lost reservation from Hilton.com (at more than $75 per night), rebooked me into hotel for $36 per night
and gave me a suite! (OK they were probably empty as CES had just left).
The rest of Park Places hotels are either Out or headed out of HHonors, according to the front desk at LVH.