i have sae combos in those four brands. older bonney made matco wcl, newer so oex, mac knucklesavers and the extra long cornwell. i also have cman full polish wich are the same as sk. i rate them as follows
1. bonney made matco. love the feel and the look. nice chrome, v heads. i would get another set if i could find them.
2-3. sk made cman full polish. nice feel, nice length. great for the price. a great wrench no longer sk made though. i recomend.
2-3. snap-on. nice length. nice finish. not real comfortable in a hard pull i bought them used at less than 1/2 price, like new. a great wrench if you can find a good used set. if you have to buy new, save your money and buy something else. to many other good options for less money.
4. cornwell. very nice satin finish. very long, v heads (bought from hiball, thanks!) if the new full polish xl's are this nice i recomend. to long for many jobs. the regulat long handle may be a better choice.
5. mac knucklesaver. a nice beefy well finished wrench. they look great but for some reason just don't feel right. if they fit your hand you may like them. the shortest of the bunch and not much longer than a raised panel sk or cman.
this list is based on personnal preferance first and value or cost second. i did not base them on warranty or availability as some versions i have are no longer available. if i needed an excellant sae wrench available right now i would go with.
1.wright grip satin. nice finish and good price
2. cman full polish. a lot of wrench for little money. you can't go wrong even at full price. unbeatable on sale.
3.sk full polish long wrench. a nice wrench and the superchrome is just pretty. probably not as cheap as the others but not truck price either.
4. take your pick. if you can afford truck brands or some other brands go for it. probably lots i am missing but just remember, he wanted opinions and i gave them. any of the better brands should serve you well.