First - there is four wheel drive and there is all wheel drive - many people see them as equivalent to one another but they really aren't - all wheel drive can be a huge advantage over four wheel drive in slippery stuff like a wet or icy road, four wheel drive on the other hand will get you places in the rough stuff where all wheel drive just will not go.
All wheel drive vehicles are designed to send power to all four wheels all of the time and therefore MUST have some sort of mechanism to allow slip between the front & rear axles, a center differential, a viscous coupling or some sort of electrically controlled clutch, four wheel drive vehicles are also designed to send power to all four wheels, but generally speaking, not all of the time - there is a huge grey area here because an all wheel drive vehicle is by definition a four wheel drive vehicle, but not all four wheel drive vehicles are all wheel drive vehicles.
If you like - a man is a human being, all men are human beings, but not all human beings are men.
Front engined, front wheel drive vehicles have been "the norm" for many decades now, they are easier to "package", and generally speaking they are safer than any other configuration (front engined rear wheel drive or rear engine rear wheel drive), and transverse engined front wheel drive is now the dominant configuration, I think Subaru might be the only company offering a front engine front wheel drive car where the engine is not transversely mounted, I believe Renault used to, but I don't think they still do. Subaru will tell you their design is superior, maybe it is, maybe it isn't, but the world is quite happy with transverse engined front wheel drive.
You can get transverse engined all wheel drive cars, it seems every one of the major manufacturers offers at least one, and for most owners these get the job done - they have different features, a fourth gen Suzuki Vitara for example can be purchased as FWD (Front Wheel Drive) or AWD (All Wheel Drive), which Suzuki calls AllGrip Select - there's a knob next to the transmission shifter that lets you select Auto, which is FWD until it senses the front wheels are slipping and then it sends power to the rear, Sport, Snow & Lock - Sport & Snow send different levels of power to the rear, and lock is a 50:50 split. Depending on the manufacturer, the options may be different, and I've seen at least one that was all wheel drive and you could "cripple" it by jacking any one wheel off the ground - do that with a Vitara and it will "drive off" the jack.
This is why I'm not willing to comment on the FreeLander or the Tucson - I'm not familiar with them, I can comment on the iO because I owned one for several years.
The problem with the fourth gen Vitara, and quite a few of it's competitors is ground clearance, or rather a lack of ground clearance, and that to me, is what really separates all wheel drive from serious four wheel drive.