Raftman, can you confirm if the RIA in fact does not leave the slide open after the last round has been fired? It does appear to be the best option of the guns on this list, and I don't mind paying for quality as I know I'll keep it a while, but I'd at least like to have something representative of a true 1911. The GSG advertises itself as having 80% interchangeable parts with other 1911s, which is an attractive feature, but I'm not convinced it's on the same level of quality as the RIA.
This is the only resource I have found on the RIA:
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