There is no best aircraft to fly for the PPL but I would stay away from anything with lots of avionic kit, At the PPL stage you need to learn to fly and navigate using the minimum of external help so forget the GPS and fly with a map and stopwatch.
The happy thing about this is the aircraft so equiped are going to be the cheapest.
Once you have a firm grasp of the basics it wont take long to get to grips with the fancy avionic kit and if that kit should fail you will have no trouble reverting to basics.
I now await the wrath of the magenta line kindergarten.