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.
YMMV: Marvel Adventures
Funny Moments - Take your pick—either the MODOK issue, or Ego the Loving Planet.
"You hear Hulk, stupid planet? Earth not interested in you!"
This troper's always liked "WHO POKED HULK?!"
The musical Earth, including a chorus of dancing Doombots.
Spider-Man is rather pissed at Wolverine, and gets his revenge thusly: "Odin, we were wrong! Wolverine really is a troll!" "Aha! Just as I thought!" * Wolverine gets beaten up off-panel*
"YO, YO, YO, GOOM IS IN DA HIZZY!"
"Pay taxes."
Vernon Van Dyne: "It all hangs on how [Janet] became Giant-Girl. She asked me to make her a super hero." Storm: "No doubt to avenge her mother's death." Vernon: "Hm — what? My wife's fine — she's at tennis now. No, Janet wanted to help people."
Three words: Galactus. Playing. Baseball.
Doctor Strange checking on "Nisilette the Unimaginable", making sure no one's imagined her. Gets a Call Back later in the issue.
Let's just say there's usually at least one per issue.
Ensemble Darkhorse - Not so much for the series itself, but for the character's assorted representations: Giant Girl is the only incarnation of Janet van Dyne that comics fandom universally adores, and the same goes for Hank Pym, used here in his Ant Man incarnation. So of course when the series was rebooted, they were both axed.