After having tested Thugs finally here is my opinion. Bruiser kills the set for me. The Punks and Arsonist are great as is. The Enforcers are the stars of the set imo. Bruiser just seems odd. Gameplay wise, and graphically. Almost all of my damage comes from the Enforcers and Arsonist, with the aid of the Punks. Which usually leads to my Enforcers dying first. Even before my Tier 1 guys.
As mentioned already the Bruiser has range problems. To be effective he must melee. At range he will Hurl a boulder what seems like every half hour. He doesnt run to melee on his own. When he does get into melee range he is decent... decent. Graphically he just doesnt suit my tastes at all. Hes supposed to be this big bulky bruiser thug dude, and he is shorter than my Enforcers. His attire is also lacking. Compared to the awesome fully upgraded Enforcers and the nice detail on the Arsonist, heck even the fully upgraded Punks look like more thought was put into their appearance.
Anyway, just my opinion! I likely wont play Thugs on live, but they do have some neat things. Enforcers rule, probly my favorite Tier 2 henchmen. Bruiser needs an overhaul.