IC Parnas is the nicest ( other than Conrad which is too new for me to have a review yet )
Location is even better than IC Coex.
I was there in Apr on points x2 nights ( as a Plat Ambassador ) and was upgraded to a Junior Suite though no BF / club was given. Got fruits and internet though.
No BF was not a big deal as there's a Burger King / bakery / Mac / foodcourt, just below IC Parnas in the Coex mall. Its also less than 5mins from lobby to subway.
You won't regret it. ( unless lounge + a buffet BF is that important to you...choose the Hilton )