just about every buggy on the market is pretty tough. all have certain weakpoints. xray's break front upper turnbuckles, mugens break shock shafts, ofnas bend shock shafts, storms tear out arm mounting blocks, kyoshos break arms (however they recently released beefier ones).
as for steering, its something you have to drive to determine what you like. both C-hub and PBS can be made to turn plenty sharp and tight, but they have different feels when driving. also just an fyi, the Crono that was mentioned, unless recently redesigned, doesn't have either type of steering. they run whats called a Kingpin steering. most people consider it a lesser quality design though the europeans tend to like it. kingpin can also be found on some Hong Nor manufactured Ofna buggies.