Is Lapras or Mega Abomasnow better for an XY playthrough?

Question

I need a last member for my team, and it should be an Ice type. I'm not sure about whether it should be Abomasnow or Lapras.

Comments

Not a full answer, but https://www.smogon.com/forums/threads/pok%C3%A9mon-x-y-in-game-tier-list-discussion-mkii.3517128/

Answer 1

Abomasnow-Mega

Pros
- Solid HP
- Excellent 132 Atk and SpA
- Highly defensive with 105 Def and SpD
- Gets Powerful STAB moves like Wood Hammer and Blizzard

Cons
- Very slow (base 30 Speed)
- 7 weaknesses, including a 4x weakness to Fire

Abomasnow is really strong and bulky when Mega Evolved.

Lapras

Pros
- A useful ability in Water Absorb make you Immune to Water, which you will encounter in the Elite Four
- 130 HP is just amazing
- Better Def and SpD
- Gets more coverage moves

Cons
- Bit slow but faster than Abomasnow
- Hard to get in wild (though you can easily get one as a gift)
- Offensive stats are worse than Mega Abomasnow's

Lapras is also good in a playthrough.

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Even when Mega-Abomasnow has more pros than Lapras, just go with Lapras. You can Mega Evolve Charizard which, is just awesome. Your moveset should consist of physical attacks for Mega Charizard X and I recommend to replace Flamethrower with Flare Blitz, which deals the highest damage with Tough Claws.
So;

Lapras @ Mystic Water
Ability: Water Absorb
- Surf / Hydro Pump
- Ice Beam
- Thunderbolt
- Psychic

Surf / Hydro Pump for STAB. Surf for is better for accuracy (and it's an HM) but if you already have a Surf user you can go for Hydro Pump to deal more damage.
Ice Beam for STAB and to counter Dragon types.
Thunderbolt and Psychic are for type coverage.

Answer 2

I'Let's Compare Abomasnow and Lapras.

Abomasnow has 7 weakness plus a double weakness to Fire.
Abomasnow gets 132 base Sp. Atk and Attack when it Mega Evolves.
Abomasnow strongest STAB is Wood Hammer which has recoil.
Abomasnow has lots of coverage moves like Earthquake, Shadow Ball, Focus Blast and Rock Slide.

Lapras has 4 weakness.
High HP and good Defenses.
Good coverage moves with Thunderbolt and Psychic.
Lapras strongest STABs are Hydro Pump and Blizzard which has 80% and 70% accuracy

I'd go with Lapras because it has less weakness than Abomasnow and can take hits well.