User blog comment:BF10/Vote for your winner in Plants vs. Zombies Heroes!/@comment-5760976-20161231140827

Plants - Doubled Mint, Mayflower, Green Shadow. Doubled Mint is very powerful if nobody deals with it, Mayflower is just fun to use and Green Shadow, while the starter hero, is still a pretty great hero.

Zombies - Camel Crossing, Unlife of the Party, Professor Brainstorm. Camel Crossing is great for costing only 1 brain, Unlife of the Party is great with rush decks and Professor Brainstorm seems like a fun hero to use (I haven't gotten him yet though.)