What are some of your favorite Marvel team-ups?

[DrNewGod]

Any excuse to put Frinemies Spider-Man and the Human Torch together is always fun...
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...but Spider-Man's adventure with the Plain-Clothes-X-Men is probably my favorite.
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[Englehart Humperdinck]

Is this issue collected anywhere?

It was reprinted in Marvel Tales #235-6 (with unimpressive new covers by Todd McFarlane), Essential Marvel Team-Up #3 and X-Men Epic Collection #5 - Second Genesis.

[Englehart Humperdinck]

MTU Annual #4, Spider-Man, Power Man, Iron Fist and Moon Knight versus Killgrave, well written by Frank Miller, but horribly drawn by Trimpe and Esposito.
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MTU #119 Spider-Man and the Gargoyle by JM DeMatteis and Kerry Gammill.
Spider-Man Team-Up #5 with Howard the Duck and Elf With a Gun by Steve Gerber and James Fry.