Which Snorlax to power up

Depends what you need. ZH/BS is by far the best. It is awesome for Snorlax. Where does 2782CP get you in gyms? Are you high enough? If not I'd power that one up to 2900+. I have my ZH/BS Snorlax sitting at 3000. I wasn't until I got him to 3000 that I started working on a second one.

Once your BS Snorlax is at a good CP for your area I would then probably do the ZH/HB for defense. You 98% one will be hard not to power up due to his awesome IVs but Lick isn't great on defense. It would take a lot less candies for your L/HS one to be gym viable and if you just want a guy to sit in a gym at a high CP then go for it.

But my first thoughts would be to work on the ZH/HB as another defender. Will take a lot more candies though. It is a tough call. Heavy Slam isn't too bad actually for defense. ZH/HB is better than L/HS for defense tho.

Lick is pathetic on defense and Hyper Beam comes close to Body Slam so ZH/HB

ZH/BS for defence I have tried to prestige against a snorlax with that set it took 4 pokemon. But for offence I would power up the ZH/HB because ZH is not, not very effective vs normal types ie the best defenders so if I were you I would just power up the ZH/BS for defence and I guess if he is not in a gym you could use him in offence.

Power up the body slam snorlax for defense so that you can sit in the top 3 of gyms.

HB is too easy to dodge to be good on defense. Even the people who don't dodge can and do dodge hyperbeam. Only way it wins battles is the dodge bug.

ZH/BS 'lax is way better than the others. That body slam just hits so often; it's devastating.

I wouldn't power up anything other than the ZH/BS one (but would consider not taking it very far and hoping for a 'lax with better moves and/or waiting for the gym rebalance)

I have 100 candies for snorlax i only caught 2 never hatched one. Both low level and iv. Can i get one of yours ill send you my 100 nidoking.