1. The dark ages were not that dark. Modern historians deride the term and prefer "early middle ages--the term refers to events after the fall of the Roman Empire. There were severe plagues, but Man's overall condition continued to improve.
Wrong. Conditions worsened at that time. Knowledge was lost, illiteracy increased, poverty was everywhere... plagues were just the tip of the iceburgs. It's not for nothing that the centuries after the fall of the Roman Empire are called "dark." Heck, it's primarily because of the illiteracy; we don't have very many written records from that time period.
Also, the majority of wars and horrors continued (as they still do) because of religion.
Also wrong. It's primarily politics. Religion is just the flimsy justification, not the actual reason. Then and now.
2. Various cultures have, at times, advanced farther/faster than others. Sometimes it's the Chinese. Maybe this time it was the Muslims. This supports, rather than refutes my contention.
Not really. After all, if your contention was true, then it should apply to all people, and ESPECIALLY to the Christian civilizations. However, those didn't get a golden age until the Renaissance.
3. Are you honestly contending that, the pace of Technology before Christ is even comparable to the pace of technology since His death?
Absolutely. Technological advancements were VERY slow during the dark ages. But technology isn't even the big point; science is. There were TONS of scientific advancements before Christ's death, especially in the fields of astronomy and mathematics, which suddenly halted after the fall of the Roman Empire in Europe. Heck, our entire system of geometry was formulated by Euclid, who lived around 300 BC. Much of the knowledge gained before that time was lost and wouldn't be rediscovered for several centuries.
Now, I am one of those who doesn't believe the entirety of the Middle Ages was the Dark Ages; after all, it was around 1000 A.D. that the university was invented, which is right smack dab in the middle of the Middle Ages, and on the tail end of the Dark Ages. Plus, around that time, philosophical thought was being heavily influenced by Aristotle, one of the smartest men who ever lived. (He was the one who discovered the earth is round.)
When it comes to technological advancement, it didn't even come close to really picking up until the industrial revolution, which wasn't even 200 years ago. Before that, technological advancement, if you consider it on a global scale, was pretty steady.