Which version of Plants vs Zombies series is the most fun usually depends on personal taste and game preferences. Each version has its own unique characteristics and gameplay, so you may prefer the style of one version to the style of another. The following are some versions of Plants vs Zombies series and their features:

1.** Plants vs. Zombies Original) * *-This is the initial version of this series, based on tower defense game, with simple gameplay and interesting plant and zombie design. This version is very popular in the history of games.

2.** Plants vs. Zombies 2: It's time * *-This sequel introduces more plants, zombies and checkpoints, as well as elements of time travel. It expands the content and challenges of the game.

3.** "Plants vs Zombies: Garden Wars" * *-This is a multiplayer shooting game, which brings the series into a brand-new style. Players can choose plants or zombies for multiplayer battles. If you like multiplayer games and shooting games, this version may appeal to you.

4.** Plants vs. Zombies: Garden Wars 2 * *- This is a sequel to Garden Wars, adding more content and game modes, and improving the experience of multiplayer games.

5.** Plants vs. Zombie Heroes) * *-This is a card strategy game, which provides a tactical game based on a series of characters and elements.

The best version usually depends on your favorite game type and gameplay. If you like the classic tower defense game, the original version may be a good choice. If you like multiplayer games, the Garden Wars series may be more attractive to you. Generally speaking, the best version depends on your personal game preferences and interests. You can try different versions to see which one suits you best.

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