It's not a question of "who got slimed", more a question of "who didn't get slimed..."

The first group of slimees included half the cast of Modern Family. You will note that it's the kids who got slimed. There's nary a drop on Jesse Tyler Ferguson.  Following that, there were a group of almost unknowns (the cast of The Thundermans???) getting spectacularly doused by a new contraption called The Slime Car. Adam Sandler then gets Josh Gad spectacularly in the face. 

The most notable omission from the slime fest, however, is one Jennifer Lopez, who spent her time on stage looking like a cracked out cat on a hot tin roof *backs away nervously*. And there is your highlight. It just would've been SO much better had slime shoots exploded from under her shorts. 
 

Those also in attendance (and remaining slime free) include Iggy Azalea, Jennifer Hudson (who performed Trouble), Angelina Jolie (who brought daughters Shiloh and Zahara, and made quite the acceptance speech), and Katie Holmes (with Suri). 

Favorite Movie Actress: Emma Stone
Favorite Family TV Show: Modern Family
Favorite Kids' TV Show:  Austin and Ally
Favorite TV Actor:  Ross Lynch
Favorite TV Actress:  Laura Marano
Favorite Cartoon:  SpongeBob SquarePants
Favorite New Artist:  Fifth Harmony
Favorite Male Action Star:  Liam Hemsworth
Favorite Movie:  The Hunger Games: Mockingjay - Part 1
Favorite Animated Movie:  Big Hero 6
Favorite Song of the Year:  "Bang Bang" by Jessie J, Ariana Grande & Nicki Minaj
Favorite Female Singer:  Selena Gomez
Favorite Talent Competition Show:  The Voice
Most Addicting Game:  Minecraft
Favorite Book:  Diary of a Wimpy Kid series
Favorite Reality Show:  Dance Moms
Favorite Movie Actor:  Ben Stiller
Favorite Female Action Star:  Jennifer Lawrence
Favorite Music Group:  One Direction
Favorite Villain:  Angelina Jolie

Via US Weekly