Somebody said "youth" but they're practically the same age, in fact Tommy is a fraction older.
Objectively, say I was an East Coast team (but with a Brandt as my biggest player), I'd take Pledger, because what they offer, he offers a bit more.
But for the Wildcats, its no contest. Tom & His wife would probably be happy to return home, and it will be easier for her to find work again. (Might be some barriers to her working as a Lawyer in NZ?)
As mentioned, Pledger seems to stick close to home, not sure how interested he'd be in moving to Perth at this stage, unless the money was really good. Plus he would probably suffer a Coronary the first time he went shopping in Perth.