"Galactus' Vacation to the Balmy DCU" from Darkseid vs. Galactus: The Hunger GN (DC/Marvel, 1995) by John Byrne
John Byrne has a deep love for Jack Kirby's work, and this DC/Marvel crossover shows it. My favorite thing isn't Galactus trying to eat Apokolips. It's not Silver Surfer vs. Orion. No. It's Galactus in his original sleeveless, pantsless costume! Summery!