If your main use is in city driving/Motorways then you should opt for HT tyres like Perelli Scorpion HT or Continental cross contact HT, your ride will be become very smooth and soft, you'll feel a massive difference from the stock tyres but the downside is you will loose your 4x4 capabilities to a certain degree. If you don't want that to be affected then AT tyres are the way to go with many options like Yoko Geolanders 015, BF Goodrich or Perelli Scorpions AT's. I changed mine to Michelin LTX Force AT's, they are AT tyres but I would say they're a bit of hybrid, the tread pattern is not as aggressive as a hardcore AT tyre but its good enough for my occasional off roading on broken/gravel roads or the potholes of Karachi roads. My rider is much softer and less bumpy with these tyres vs the stock Dunlop's.