Both are weak to fighting types but it really doesn't matter they are both pretty good as long as they are decent levels. I personally think Absol is better but glalie is pretty good too.
Gengar has four weaknesses. It is weak to Dark, Ghost, Ground, and Psychic. If it has the ability Levitate, then it is immune to Ground.
Lugia is a psychic/flying type. Despite being a legendary pokémon, it still has the normal weaknesses for this type. The weaknesses of Lugia are (super-effective against Lugia, 2x): Dark, Electric, Ghost, Ice and Rock. However, it is immune to Ground.
Regardless of their type, Pokemon can learn a variety of moves and attacks, so, Psychic is not immune to any Pokemon. If you are referring to what "type" has no effect against Psychic, the answer is none. Psychic isn't immune to any type. It is resistant to Fighting and Psychic attacks though. There is one thing, however, back in Pokemon Blue, Red and Yellow, Psychic used to be immune to Ghosts, but that was years ago and strangely, after those 3 games, Psychic became weak to Ghost.
Ghost and Dark. Dark is immune to Psychic attacks.
Strengths: Her beauty, her talent, her knowledge, her power, and her willingness. Weaknesses: She was very vulnerable, she was a manic depressant, her immune system was very weak, and she struggled with addiction.
they are weak to fighting and bug. They are immune to psychic. They resist dark and ghost. They have no weaknesses if they are dark and ghost.
Gengar has four weaknesses. It is weak to Dark, Ghost, Ground, and Psychic. If it has the ability Levitate, then it is immune to Ground.
Lugia is a psychic/flying type. Despite being a legendary pokémon, it still has the normal weaknesses for this type. The weaknesses of Lugia are (super-effective against Lugia, 2x): Dark, Electric, Ghost, Ice and Rock. However, it is immune to Ground.
I would suggest Froslass because... Froslass has better base stats. Glalie has even base stats, but Froslass trumps Glalie in speed (Froslass: 110 base speed, Glalie: 80 base speed) Froslass is also immune to normal and fighting, where as, Glalie isn't immune to anything. Froslass is also resistant to Poison, Bug and Ice, where as Glalie is only resistant to Ice. However, because Froslass is ghost and ice, it is weaker to more types than Glalie is I don't really know about their move pools, but from a first glance, they look equal. I'm currently training a Froslass (I was torn between Froslass and Glalie as well), but I've never even battled with a Glalie, only against it in Leaf Green.
Regardless of their type, Pokemon can learn a variety of moves and attacks, so, Psychic is not immune to any Pokemon. If you are referring to what "type" has no effect against Psychic, the answer is none. Psychic isn't immune to any type. It is resistant to Fighting and Psychic attacks though. There is one thing, however, back in Pokemon Blue, Red and Yellow, Psychic used to be immune to Ghosts, but that was years ago and strangely, after those 3 games, Psychic became weak to Ghost.
Dialga is a legendary Steel/Dragon type. Because of this combination, it only has 2 weaknesses (x2): ground and fighting. It's immune (x0) against poison and resists (x0.5): bug, electric, flying, grass, normal, psychic, rock steel and water.
Ghost and Dark. Dark is immune to Psychic attacks.
its maw and it is not immune to its claws
Mismagius is a Ghost type. It evolved from Misdreavus with the help of a dusk stone. Therefore it's weaknesses are (2x): Dark and Ghost. However, it's immune against Fighting and Normal types and when it has the ability Levitate, it's also immune against Ground.
Strengths: Her beauty, her talent, her knowledge, her power, and her willingness. Weaknesses: She was very vulnerable, she was a manic depressant, her immune system was very weak, and she struggled with addiction.
No Just to the following types: Gound Fighting and Fire and is immune to Poison Psychic is strong against the following types: Just Fighting and Poison And it will not affect Dark types at all
Jynx is an Ice-Psychic type, and as such, is weak to these attacks:RockBugGhostSteelFireDarkThey will all do double damage. Jynx isn't immune to anything, although it is resistant (half damage) to Psychic and Ice moves.