Hey there—happy to offer up some thoughts here. Yes, it is ALWAYS better to apply round one. Don’t believe what Wharton tells you. It is ALWAYS better to apply round one—but only a little bit better. The advantage is relatively small. So if you can put together an A+ application for Round 2 instead, then you should. All the schools you’ve listed above are the same—better to submit for Round 1. But if you can improve your application significantly (in your case, breaking 700 on the GMAT) then forget Round 1! The difference between the two rounds is small enough, that it is far more important to submit a better application, than to hit Round 1.
Hope this helps, and feel free to reach out with additional questions!