This is kind of a ridiculous question. It's like asking what's the best kind of hat. There is no right answer, you're going to need a hat that suits your needs.
There are just too many factors to consider. What kind of off-road ability you need, fuel economy, gas/diesel, interior space, whether you're going to sleep in it or on it, if it's also your daily driver or a dedicated rig etc tec etc...
For me the perfect overland vehicle is my lifted SX4. Doubles as a fuel efficient daily driver, plenty of space for my girlfriend, dogs and I, it's unique, and loads of fun to drive. If I wanted a more dedicated rig (but still a daily driver) I'd probably go with a Grand Vitara with some ARB and OME goodies. But the SX4 has never let me down so far. For most of the true 'overland' vehicles I think are overbuilt for most trips. Too big, not fuel efficient and simply not needed. But we're talking about NEED here, and who builds something only to the point of what you need?! Everyone on here probably wants to see if they can climb that hill, or get through that mud pit, or cross that river, or climb that rock, and when you can't it's fun to winch yourself out. And that's half the fun of most overland trips for some people. But then we're starting to get into a dedicated off-road rig, not an overland vehicle.
I think this question would be better suited with some different categories maybe
