First, Rude, ?
Second, GET TO DA CHOPPA! WE STRAYING FROM DA TOPIC!
Finally, on topic. Although I have not generated many worlds, the four or five that I have generated have all had most excellent embark sites featuring multiple metals and everything else one could desire. However, I have noticed that overall the types of stone and rock are less than what they once were. So far, I have done three memorable embarks and a couple of ones that were rejected due to user error or some similar issue.
First one: Lots of materials, lost to river creatures, player incompetence, and lack of third party tools.
Second one: Lots of non-iron metals, flux stones, and anything else one could want, including enough blue metal to outfit around fifty dwarves in full armor and weaponry; lost to modding typo (caused by sleep deprivation), and critical fps.
Third one: Lots of iron, chert, schist, red pyrope, white calcedony, trees, sand, and clay; non-ideal location in order to kill elves; lost to goblins; reclaimed, one dwarf survives, fifteen arrive in migrations, still going strong, but slow due to the 800,000 flows caused by cavern water loss upon reclaim.
Hopefully, this was on topic.
Also, the Future of The Fortress sticky in the DF General Discussion page has a discussion going on about the findings in this thread and their possible applications to shipbuilding/ocean mining. (Page 254-255 for later readers)
Also, posting to watch.
Too wordy and self-centered. I apologize.