Yes, yesterday I looked through all the different US flags, but none really beats the Betsy Ross design. Don't know why, but it looks great. There's a nice-looking 51-star US flag proposed by some political party in Puerto Rico if it becomes a state: en.wikipedia.org/wiki/File:US_…
And on reddit, there was a US flag with 1 big star and "x51" written next to it, as solution if a 51st state is added to the Union ^^
i.imgur.com/9RY7g.png
About the CSA flags... I don't know... Design-wise, I like the Blood Stained Banner, but I don't think it would be good as a national flag. It looks more like a naval flag to me. And the (in)famous Confederate battle flag is so 'stained', but in a very weird way. Not like the Nazi German flag. Most people here in Europe are 'afraid' of that flag, it's nothing to joke about because it's mostly seen as a horrible symbol of racial, genocidal tyranny. But it seems many people in Europe consider the CSA battle flag some kind of "idiotic-villain"-flag, the symbol of a backward idea/society which is embodied today by the stereotype rednecks & hillbillies of Alabama and such places: a kind of people that are so supremely stupid, you can only laugh at and ignore them. Whereas the historical CSA-leaders were anything but supremely stupid, I think. People don't really know about the CSA and the American Civil War here... I would like to know more about how that is all viewed in the USA today.
I think the Star Spangled Banner will only be on display for a few more years and then go back into storage. It is so huge and can no longer be hung so it is hard to display. It was conserved and cleaned a few years ago in preparation for the centennial. And I do agree, the best design we have ever had over the years was the Betsy Ross flag.
Where you live pretty much determines how you view the Civil War. Most still think it was all about freeing the slaves, but it really was about preserving the Union. Emancipation came late in the war, sometime in the 3rd year and was an attempt to force an end to conflict. There are places in the south where it is called “The War of Northern Aggression”. They still honor the Confederate Flag. There are still some areas where racial conflicts can be found...and even some in the northern states.