User blog comment:Pinkgirl234/I Got Good News People!/@comment-26945790-20151224144341

Some tips:

Easy worlds: AE, PS, FF, FC, LC.

Harder world are the rest.

Worlds with useful plants: PS (Snapdragon, Cherry Bomb), WW (Melon brothers), FF (everyone except E.M.), DA (Sun and Fume), FC (Stunion and Chard Guard), JM (everyone except Perfume).

World with useless plants: AE, BWB, LC (only Stallia is useful), NMT (only Phat Beet is part-useful).