Buy whatever suits your needs now, generally the standard of driving in Audi’s BMW’s & now the Merc A class is down to a serious fault with the nut holding the wheel, combined with the vehicle being on lease to a company.
However don’t discount other vehicles mentioned, the Skoda’s do seem highly regarded, personally i’d Be looking for more for my money then any German car gives, Japanese would be good to, as for 4x4, to me it’s pointless on a road going car, if you are going somewhere with difficult terrain you are really looking at proper off roaders with a minimum of All Terrain tyres fitted, anything else just gets you stuck further away from possible help.
Equally any one who buys a real off roader and fits road tread tyres, is like buying a prime breeding bull, then having it castrated!