14 years later and still such a nice experience. I'm personally not that much of a tower defense guy, but the charming and fun gameplay loop from this one absolutely won me over.
It has great music, a wide variety of plants to unlock and use, and of course many types of goofy ahh zombies to beat the shit out off with peas and corn. And besides that, you also have wacky minigames, puzzle games and even the Zen Garden to take care of your plants and relax for a while...

The only downside is that there wasn't enough of Crazy Dave and that makes me sad :(