I've sampled all of Freedom's products and these are my thoughts:
Freedom One: It's a great product, but you need to be mindful of how much product you use! Light mists work much better than heavy. Let the product sit for a min or two as it emulsifies the dirt. Wipe clean with your moist microfiber, buff clean with a dry.
Original Formula: No significant differences from Freedom One.
Eco Tire Shine: There are better products for tires! As an interior spray it worked well. Also, the smell of this product (before Freedom changed it!) was amazing!
Complete Clean: The product worked extremely well on dirty cars. If you are placing a coat of wax on the car or compounding, starting with "Complete Clean" is fine. If it's just a quick "wash", stick with Freedom One.