New to caravaning!

We are new to looking at caravaning this year. Over the past 10 yrs we have gone from looking at a bus to a smaller motorhome to caravans to get us out on the road traveling. We want to know the difference between using a double cab ute to tow and the 4wd ,like a Prado, and the difference in ride and handling vs towing capacity.Which is the better?Do we need to fit electic braking system to the tow vehicle? Thanks

John Anderson, WA