I'm not familiar with Morel lifters, how do they compare to Crowers or the new Isky's with a type of bushing non-needle bearing roller tip?

On my recent engine build up, I used a set of Speed Pro stock replacement type that use the dog-bone retainer. We made 501hp, and these worked out just fine for our mild set up. The price was right as well. I know the Morel pieces are nice, but on a stock rebuild, I'm not sure they are worth the extra dough.