Mega Gardevoir or Mega Alakazam?

Question

I have both stones
Which one should I use for the Battle Maison (Single Battle)
My team:
Jolteon (M) @ Wise Glasses
Nature: Timid
Trait: Volt Absorb
EVs: 252 Spd / 252 Sp Atk / 6 HP
Moveset
-Thunderbolt
-Shadow Ball
-Signal Beam
-Volt Switch

Salamence (M) Life Orb
Nature: Jolly
Trait: Intimidate
EVs: 252 Atk / 252 Spd / 6 Def
Moveset
- Dragon Rush
- Hone Claws
- Stone Edge
- Earthquake

Or

Comments

You need to add the team your using and what type of battle your doing e.g. single battle, double battle etc. Otherwise it just comes down to which mega people like better.

Answer 1

In terms of synergy Gardevoir will work better to take Dragon attacks for Salamence. Plus you already have a speedy special attacker (Jolteon) so Gardevoir can work as a support Pokemon if you're interested in that. An alternative is bulky offense. Here are my suggested sets:

Gardevoir @ Gardevoirite
Ability: Trace
EVs: 252 SAtk / 252 HP / 4 SDef
Modest Nature
- Hyper Voice
- Energy Ball
- Focus Blast
- Psyshock

Gardevoir @ Gardevoirite
Ability: Trace
EVs: 252 SDef / 252 HP / 4 SAtk
Calm Nature
- Wish
- Protect
- Toxic
- Hyper Voice

Comments

Why Hyper Voice?

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Pixilate

Answer 2

Really depends on your team and/or personal preference.
I myself prefer Mega Gardevoir over Mega Zam because I don't like frail Pokemon like that. And I like Gardevoir's new typing a lot more.

But it really comes down to personal preference and your team atm, if you need a more bulky Pokemon and a psychic/fairy one, choose Gardevoir but if you want something really fast and powerful(but frail), pick Alakazam.