Pidgeot

Type Tier
Normal / Flying UU
Statistics
Stat
HP
83
369
Atk
80
258
Def
75
248
SpA
70
238
SpD
70
238
Spe
91
280
Name Item

Standard Pidgeot

Leftovers
Moveset
~ Return
~ Hidden Power Flying / Wing Attack
~ Toxic
~ Steel Wing / Mirror Move / Hidden Power Ground

The first two moves run off STAB, just depends on if you want more power or not. The last 2 moves are up to you. Toxic can help you kill things, Mirror Move can be a nice surprise, and Steel Wing and Hidden Power Ground can be good against Rocks on switches. Steel Wing keeps your DVs maxed and hits Aerodactyl, but Hidden Power Ground has perfect accuracy and hits Magneton and other Steels harder, as well as the Rock / Water-types (Omastar, Kabutops, Corsola). Just remember that Return hits non-Magneton Electrics harder than Hidden Power Ground.

Other Options

Thief is about it. It can be a good option on any Pokémon, since it can completely screw over something like Blissey or Snorlax by taking their Leftovers. Other than that, all the other viable possibilities have been listed.

Opinion

Pidgeot has somewhat workable stats. Its problem is its typing and its limited movepool, along with the fact that it's outclassed by other Flying Pokémon. Whatever Pidgeot can do, Fearow and Dodrio can do better. It can be used effectively though, as long as you play well and keep the heavy hitters away from it.

Counters

Pidgeot's Attack is an unimpressive base 80, which means most Rock and Steel Pokémon will take it on well even if they are weak to Steel Wing or Hidden Power Ground. Omastar, Kabutops, and Sudowoodo will work well; Magneton is of special note, because although it dies horribly to Hidden Power Ground, it quadruply resists Steel Wing and Flying attacks, and can very nearly OHKO with Thunderbolt. Other Pokémon with Ice or Electric attacks, such as Raichu, may also work. Weezing's high Defense lets it switch in and Thunderbolt very easily.