Your choice should also depend on how the vehicle was maintained. Make sure all scheduled maintenance was done and see if records of service are available. Personally I'd pick the city one where the 4X4 hasn't been used too much since using it does put additional stress on more parts. If the 4X4 has been used constantly then there's a increase in potential for problems.

The quality is built in so if the 4X4 has been used too much you shouldn't experience any problems should you choose to start offroading it.

That's my opinion...