Toyota alloys seem to be good quality, have a modest weight, and I have never seen one fail. Replacements cheap used.
Forged wheels offer great strength with big weight savings that benefit suspension, overall performance, and drivetrain wear. Most truck owners don't really consider them because they are $$. With all the steel and gear people put on these trucks saving 10 pounds a wheel probably seems insignificant to the money spent for forged rims.
Cast aftermarket are a crap shoot. Most are made in China so they don't have the same quality standards that a Japanese manufacture would. The offsets that are offered in our sizes are not optimum but, they will work. The big draw for me is cosmetic in this category. Finding an option that weighs as much as a stock cast wheel is tough. Most cast aftermarket wheels are quite heavy and when adding big rubber you can add a bunch of extra weight. Harder on the suspension parts, slower acceleration, harder on drive train, and increased braking distance.
It's no surprise that most hard core off roaders stick with the stock wheels. The offsets work well with big rubber and they perform well. I recently got some Fuel Trophy's +20 with 275/70/18 ko2's. The wheel weighs same as stock and quality seems good. I bought this set up because I liked the way it looked and how solid the truck felt with the wider stance. If I was wheeling this truck on a very regular basis I would swap back to my stockers.