I go for pvz2 artstyle this time (or at least I tried)
Probably imitater honestly
Snow Pea: Stays the same.
Torchwood: Stays the same.
Imitater: Slightly belongs to PvZ2.
Chomper: PvZ2, absolutely. Who needs a 4-cost 2/2 plant just to destroy a limited strength zombie?! Why don't use that hammer?
Toadstool: PvZ2. Don't know why.
Cactus: Stays the same.
Electric Blueberry: PvZH, because no need to recharge and higher health.
Jack O' Lantern: Maybe PvZ2, since he has far range.
Witch Hazel: Stays the same.
Grave Buster should has no family.
Coconut Cannon should be Bombard-Mint
Blover should has no family.
Magnifying Grass should be Enlighten-Mint.
Tile Turnip should be Enchant-Mint
Magnet-Shroom should be Fila-Mint.
Guacodile should be Appease-Mint.
Gold-Leaf should be Enlighten-Mint.
Thyme Warp should be Contain-Mint.
Perfume-Shroom should be Enchant-Mint.
Power Lily should be Enchant-Mint.
Torchwood should be Pepper-Mint.
Ghost Pepper should be Enforce-Mint.
Dandelion should be Bombard-Mint.
Wasabi Whip should be Pepper-Mint.
Dazey Chain should be Appease-Mint.
Pokra should be Ail-Mint
Player's House: Peashooter and Sunflower stay the same, but I feel Wall-Nut and Potato Mine are more useless in PvZH somehow, while Cabbage-Pult is more useful.
Bloomerang: Stays the same.
Iceberg Lettuce: Stays the same (or more useful in PvZH, idk).
Grave Buster: Defintely more useful in PvZH! Graves can be easily destroyed in PvZ2, they just block projectiles from straight-shooting plants, or create some necromancy effects (which are imps), while in PvZH...
Bonk Choy: I would say PvZ2 because he is the life-saver for the beginners, who don't have much strong plants, with powerful melee attacks, while in PvZH, meh(+ 1 strength??? Who needs that limited 3-strength guy? Why don't use Primal Potato-Mine??).
Repeater: Stays the same.
Twin Sunflower: Their PvZH version is slightly better, for a cheap cost.
Kernel-Pult: 100% PvZ2. Stunning-butter effect, instead of reducing stats.
Snapdragon: Stays the same.
Spikeweed (or Spikeweed Sector): This is better in PvZH, with the useful ability, enough to kill a Zookeeper, while having small damage, not saying some high-speed zombies can pass him easily without getting hurt.
Spring Bean: Maybe PvZ2, I once saw this guy toss a whole Garg into the sea.
Threepeater: Somehow: PvZ2 (maybe because of the Threepeater + Torchwood combo, especially with Plant Food).
Cherry Bomb: Stays the same (or PvZ2, with higher damage and lower cost).
I'd to see your thoughts!