what hatchery has the most interesting variety of ee, and also the heaviest birds?
Boy, I bet that will be a hard question to answer! Most of us only get so many birds and only so often. If happy with the first hatchery, would probably stick with them and have no idea how to answer the question because we have insufficient experience with many hatcheries. You would probably need a thread specific to that topic where people post pictures of their EEs with weights and the hatchery they came from. Then boil it down into a chart.
All I can say is that the 2 I got from Ideal 3 years ago looked different from each other and the 3 I got from Meyer (because Ideal didn't have what I wanted NOW to stuff under a broody hen) this year look different from each other and the older ones. Weight? I have no idea. Here are the new ones, the picture is several weeks old but as you can see, there isn't much similarity: