Beating gyms are important for gaining XP and PokeCoins faster. You will want to bring the most power Pokemons to win. Here is the ranking based on our evaluation criteria.
Evaluation Criteria
The evaluation criteria currently includes the followings.
This criteria does not include how easy the Pokemon is to be caught. In Pokemon Go, you have to capture same kind of Pokemon to power up the Pokemon by using candy. Therefore, how easy the Pokemon is to be trained is connected to capture easiness.
Dragonite is one of the Pokemon can have higher CP value. Additionally, its both standard attack and special moves has higher power. HP is also better than other Pokemons. Dragonite can beat mostly another Pokemon.
Type Effectiveness
In Pokemon Go, there are a few Pokemon with types effective against Dragonite: Ice-, Fairy-, or Dragon-type. So, Dragonite encounters Pokemon with effective against it fewer times relative to other Pokemons.
Snorlax's max HP can be very high due to its higher stamina base stats. It rarely lose a battle with Pokemon with same extent CP.
Useful moves
Since Snorlax's moves are normal-type, these are not super effective against all Pokemon. On the other hand, the damage of norma-type moves are hardly cut off because only rock-, steel-, and ghost-types are strong against normal-type.
Arcanine's base stats is higher along all the Pokemon. It can win gym battles with only using fast move some times.
High power fire-type moves
The combination of Fire Fang and Fire Blast has the best attack performance. Additionally, since Arcanine's type matches with those moves, the power of moves is increased with STAB.
Although Fire-type is weak against to Ground-type, Charizard is not weak against to Ground-type because of its dual types: Fire and Flying. So, Charizard has fewer weaknesses.
Effectiveness to Dragonite
Charizard can acquire Dragon-type charge attack: Dragon Claw. Dragonites is weak against to Dragon-type moves, so Charizard has an advantage.
Vanusaur has higher Max CP in Grass-type Pokemon. Additionally, its HP is high and it has advantage in durability.
Good Fast and Charge Moves
Venusaur's fast and charge moves, Razor Leaf and Petal Blizzard, are useful based on its power, speed, and energy consumption. Moreover, Grass-type moves are effective to Vaporeon, one of the everyone's favorite.
As well as Vaporen, Blastoise can use Water Gun and Hydro Pump, and those moves have higher DPS along all the moves. If opponents are fire-type Pokemon, Blastoise is easy to win gym battles.
Gyarados's fast moves are dragon- or dark-types. Those moves are super effective against dragon-, psychic-, and ghost-type Pokemon. That means Gyarados can have advantage over rather than fire- and ground-type Pokemon.
Mud Shot and Stone Edge are very high DPS moves along all the moves.
The Most Powerful Pokemon by Type
Here are the most powerful Pokemon by types. The evaluation is based on base stats. The link below shows the top 3 most powerful Pokemon for each type.