I've stayed at the Conrad and the Hilton. The Hilton was the better of a bad choice. The Conrad was nothing like i expect a Conrad to be: the Hilton was very much a resort Hilton with a lot of package holidaymakers and cruise-joiners/leavers. The Hilton lounge was one of least impressive I've visited.

Both hotels are sort of isolated - perfect for those with no interest in Bali: I'm not knocking that, it represents peace and quiet! But you'd be disappointed if you expected to be able to get out and about easily.

Unless you are totally wedded to Hiltons, the other side of the peninsula is far more fun. Jimbaran has better beaches, more life, shops, some night-life, plenty restaurants and sea-food beach shacks without being as honky-tonk as Kuta. No Hiltons, but the IC has a super location - it's considerably more pricey than the Hiltons though.