TG gain point of strength but lose a point of AS and the shield ward due to halberd. The also gain a point of WS and a point of Initiative, but cost a lot more. They can also take a magic std and the champ a cheap magic item.
They are generally worth the extra points if fielded with a slann, opinions differ when fielded without a slann as the TG/slann combo gains a lot of special rules.
SW are a lot more cost effective unless you really need the extra points of Str, WS or I to make your battle plan work. Skrox can get you I and Str; Krox Str and Scar Vets can do all three.
As TG get so much better with a slann, I generally plan to have the slann with the TG block when I want a TG block and run the slann solo only when I don't want/need TG.
