From Bulbapedia, the community-driven Pokémon encyclopedia.
I hate how many Nintendo event exclusive Pokémon there are.
I have legitimately caught all 150 Pokemon in the original Pokemon Red and Yellow games as well as receiving a Mew that may be (and probably was...) a non-legit capture but I myself received it fairly in a trade long before I even had the internet to know any Mew glitches (like pre-Year 2000)
Other pokemon I would definitely catch:
|| ☆ This user's favorite Pokémon is Nidoran♂. ☆
|| ☆ This user's second favorite Pokémon is Pikachu. ☆