>>27568709Crobat is situational; Espeon is "good" only for its HA, but it's too one-dimentional. Umbreon started to become even less relevant starting from Gen IV, thanks Close Combat for that.
Wobbufett is arguably the most annoying Pokémon, sure, in GSC you could just fled, but in ADV was almost a death sentence.
Scizor wasn't that good in Gen II nor Gen III. Hell, even in DP wasn't that good. It got Bullet Punch by Platinum.
Kingdra is good. Not amazing, but good.
Celebi isn't even usable in sanctioned formats so left the little onion out of this.
Suicune and Tyranitar are arguably the best Pokémon from Gen II.