Mudkip turns into such a monster I can't help but care. I don't really care about the rest of them, though. --- Gamer for life, 31 years and counting. A life without video games is not a life worth living.
It's a bit extreme, but I tend to judge entire generations on the starters appearance: I don't play competitively, so I just use Pokemon I like. If the starters for a generation are bad, I'm notably less interested. I even judge Fakemon generations on that scale: If the starters are bad, the rest usually can't save it.
And once I've got a starter I like, I always keep it in my party, all the way up to the League, and unless I'm fighting a specific type trainer I can't tough it out with, or training a certain Pokemon, they're usually at the front of my party.