The "stacked plate" coolers (more of a semi-truck product than a car product) are more durable for sure, but I'm not sure if they cool any better than the regular "tube & fin" type.

In my opinion, a stock-style transmission cooler is nowhere near enough cooling for your stall/gears. I suggest you at least consider one of those setups that comes with its own cooling fan(s). If you keep the fluid cool, your transmission will lead a long, happy life.