>>128290481Louise is a precocious, troublemaking mastermind with a sweet side hidden deep deep down, all in the body of a cute little girl who's always donning an iconic pair of pink bunny ears. She's like a girl Bart Simpson. What's not to love?
Tina might take some getting used to at first, but her awkwardness mixed in with her misguided determination in every goal she pursues makes her weirdly endearing and usually a character worth rooting for. She's also the most moral of the three kids, so that can help make her more likable than her siblings.
Gene's the goofy comedic relief who's very comfortable in his own skin, no matter what anyone says. That can lead to some funny one-liners or memorable scenes (Little Bob), but it can also work against the boy and make him too much to handle at times. I feel the writers have been losing their grasp on what makes Gene work lately, but he still gets plenty of moments to shine throughout the series. Gene's musical talents are also a part of his character that's very easy to appreciate.
What makes the cast of Bob's Burgers different from most animated series is how realistically flawed everyone is. You'll notice weird quirks and speech impediments in so many areas, and I think that's a big part of the show's appeal; it really shows the beauty in ugliness well. Teddy, Mort, the Fischoeders, Jimmy Pesto, the kids and teachers at Wagstaff School, Edith & Harold, Gary, Sergeant Bosco, and even Speedo Guy are all pretty entertaining and memorable I'd say. Even one-offs like the deli guy are characters you'll never forget.