Ok I get it, but there's a difference between "worst" and "least favorite". Thought you were going by the former.
The 'least favorite' of almost everyone is Bulbasaur because it SEEMS to be the most weak. But Charizard (my favorite) for example, is a very weak Pokémon. It only takes a Rock type attack like Rock Slide to defeat it, so, as I said in my first post, it's a taste matter.
Btw, Squirtle also is very interesting.
Err no? There are a lot of Bulbasaur fans out there. And it's generally the least popular because of aesthetics reasons. Bulbasaur in Gen1 was broken with 2 broken moves and had the highest special stats. Even most people who don't pick Bulbasaur admit that's it does better than the other two but they prefer the dragon and the turtle tank.
Squirtle is arguably the worst Kanto starter. Mediocre stats, 1 stab typing, bad in competitive and there are many better water alternatives in Kanto.
I think you've been a little sensitive about a personal taste. I didn't say that Bulbasaur is ugly or the worst starter ever. I just say that is the 'least favorite' because almost everyone prefer Squirte and Charmander, even if they are not useful in the first gyms.
If you're a fan of Bulbasaur (because you are) it's perfect.