Starcraft 2 has a lot of exciting new units but some stand out more than the others; the following are my own personal favorites for favorite new units in SC 2.
For Zerg: Banelings
The new baneling morph for Zerglings in Starcraft 2 is an extremely fun unit to use because of its unpredictability and high damage potential.
Plus, the fear it can instill in opponents is priceless. Banelings can “bust” past a Terran wall configurement or take out big groups of marines with ease as their suicide acid attack.
Get the speed upgrade and watch them roll, then send them at buildings and troops in waves.
For Protoss: Void Rays
Okay, so they’re kind of cheap in some peoples’ books and they are very tough to stop. Many people are searching for tips on how to stop mass void rays (here’s an article I wrote about the subject) and for good reason as everyone uses them. They are easily one of the most fun new units to use in Starcraft 2 with their ability to decimate a whole base in a matter of a few minutes when charged.
For Terran: Thors
The giant walking mechs are not as speedy and versatile as Goliaths from SC: Brood War but they pack a punch and they dominate air units. Mutalisks can get them with the new “magic box” technique to minimize losses but Thors still beat them in most cases.
And they dominate on the ground in large numbers with SCV’s repairing them making them fun to rush with. Or you can drop them, pick them up, and run and re-drop with a Medivac.
These are my picks for the units that may not be the best to use in Starcraft 2, but they are the most fun in my book; enjoy the game everyone.