Polaris 50cc

I am looking for 50cc ATV for my son of 6 years of age, who is the best option for me?

I considered several brands such as Yamaha's Raptor, Predator, kawasaki polaris and suzuki, or someone can recommend more options?

A have a Suzuki LT50 for my son and is a great bike. The name brands will cost more, but will have a higher resale value. A blow for sales, and will Probally much use, but not worth much for resale. brand name that is the way forward due to children overcome them so quickly and they get little use. I know that some people with Kazuma and Redcat who have had the good fortune to them. It comes down to how much you want to pay for 1-3 years of riding.

Polaris 50 beginner