Irrelevant.
Name the foreign enemy which has treated American soldiers as well as Bush treated the Gitmo detainees.
Go ahead. Name one.
On average, the Germans treated American POWs better than the Bush administration treated Gitmo "detainees". Of course, the question itself is mis-direction. Having waded through hundreds of pages of arguments about the status of the detainees in Gitmo (and having actually been there half a dozen times myself), it all comes down to a few simple facts, and those facts easily guide one to a logically inescapable conclusion. First, the facts:
1. There is no monolithic block of detainees. They are not universally combatant detainees from either Iraq or Afghanistan. A significant minority of them were traded to US authority for a bounty, with no more "evidence" against them than that the person seeking the bounty said they were combatants.
2. The detainees are either Enemy Prisoners of War, or they are criminal suspects. There are no other categories for these detainees - no matter how hard the Bush administration attempted to create one. The courst have ruled on this, and it is established law.
3. If the detainees are criminal suspects, then they are entitled to the full protections of the US Constitution, and it matters not at all where they were captured or by whom. If they are suspects, then no evidence obtained so far would be admisable, and the goverment has certainly forfeited the right to present a case at speedy trial.
4. If the detainees are Enemy Prisoners, then any coerced interogation is a violation of several treaties binding on US officials. In other words, the interogations themselves are war crimes. Additionally, those same treaties require the US to afford the EPWs the same rights as US Service Personnel should they be accused of crimes.
The conclusion:
The US has no constitutional authority to try these detainees if they are EPWs, and no evidence with which to try them if they are suspects. If they are suspects, their rights have been so violated as to make trial impossible. If they are EPWs then the US is guilty of war crimes.