It seems that Palawan, especially Coron, would be a perfect fit for you based on your tastes. Offering a blend of nature, genuineness, and tranquility, Coron is renowned for its breathtaking natural beauty. The underwater life is amazing if you like snorkeling, and the sceneries are breathtaking. Compared to some other popular tourist spots, it's comparatively less congested, giving you more opportunity to explore at your own pace. Conversely, El Nido is equally stunning but tends to be more developed and well-liked, which may draw more visitors. Based on your preferences, Coron seems to be more in line with the locations you appreciate, providing a private but stimulating encounter. Although there may be some crowding over the holidays, mid-December is a wonderful time to visit. Have fun and travel safely when visiting Palawan!