These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Wheezie: It's no worse than kissing a brother! (kisses Zak on the cheek)
Zak: Eww, sister germs!
Crowning Music of Awesome: The reason all the songs on the show are available over two CDs. Additionally, the music played by Quetzal for the freeze dance game in "Tails, You Lose." Relaxing, majestic, and beautiful.
Ear Worm: The theme song like woah, and many of the Dragon Tunes. If you have a young relative who likes this show, you WILL get at least one stuck in your head.
Unintentionally Sympathetic: Mr. Pop comes off this way in "Wheezie's Last Laugh," since he steals Wheezie's laugh. Most viewers, particularly those in the Periphery Demographic, find Wheezie's laugh very grating, so most end up rooting for Mr. Pop instead. This is saying something because he is supposed to be intentionally annoying.
The Woobie: Due to all the little abuse Zak regularly takes, it's hard to not want to reach out and give him a hug or a cuddle.
Cassie too, given how easily she gets upset and how hard it is for her to speak up. She's also the nicest dragon in the show, tied with Quetzal (which admittedly is not saying much since most Dragonland citizens are friendly), so even on the very, VERY rare occasions where she's acting selfishly (jealousy over little brother Finn, for example, or getting worried that a new dragon will take Emmy's friendship away), her reasons are realistic enough that the viewer doesn't lose sympathy. And unfortunately there are multiple episodes where she has to face disappointment or fear of some kind. It's easy to want to give her a big gigantic hug.