SpongeBob can be pretty annoying and too overused.
Patrick is extremely unconsistent and very plain dumb.
Squidward is extremely bland, lame and overrated.
Mr. Krabs is still too much of a greedy jerk.
Sandy is just plain boring, lame, and unappealing.
Gary doesn't bring anything new to the show. He's boring.
Plankton isn't like the villain he used to be. It's tiring.
I don't know who to vote then. The other Bikini Bottom people? Eh no, they're too rare. I'll be honest, I currently don't have a favorite.
Patrick is overall my favorite for sure, but in those three seasons (And really almost entirely those three), he acts way too rude or stupid or ooc and wasn't funny a lot of the time, Yours, Mine, and Mine being the biggest example of this. So I put Squidward for those three. For the rest though, Patrick is defitenly my favorite.