I need to try Maui someday. I've visited Oahu (twice), Big Island and Kauai. They have their own unique charms. Kauai has stunning green mountain scenery and great beaches, but the Big Island has much better snorkeling.
Next year I have been thinking about a road trip to Montana and going up into Alberta to see its national parks. If I do go, I will try to stop by and look Wooglint up.