It's not just phonetics as pa-naeng and penang sound quite different.
I'm sure the setting of the branch on the beach is amazing but have you been to the one in North Pattaya? Is the food of similar standard to the one in Bang Saray? I'm asking because the average two-night, three-day Singaporean visitor to Pattaya might not have the time to go to the one in Bang Saray.