Most Snorlax sets uses Thick Fat because they use rest which heals status problems like poison. So I would go with Thick Fat. If you want movesets I would go with RestTalk and a hazard setup like Ferrothorn or Forretress They setup Stealth Rocks and Spikes x3 The switch to this Awesome Snorlax.
Snorlax @ Leftovers
Trait: Thick Fat
EVs 208 HP / 144 Def / 156 SpD
Nature Calm
- Body Slam
- Rest
- Sleep Talk
- Whirlwind
Okay Snorlax is in UU there the mos Common Spinner is Hitmontop thats why I use Zen Headbutt on this set. Rest is replacing Immunity and works excellent with Sleep Talk and Whirlwind.
Hope you'll like it
////Jofly