For me, Folders on Top almost works: I use the Visor in Column View mode with Sort by Name and Arrange by Kind. With these settings, Folders are not actually on top - Documents (.doc, .docx, .odt, etc) are on top. Folders are next, followed by everything else. This can pretty annoying when I’m trying to drill down through several folders, each of which has numerous .docx files; I have to constantly scroll down to even get to the next layer of folders.
This has been happening since my upgrade to Mavericks. I was hoping that TF 1.5.5 might fix it, but no dice. Pre-Mavericks, everything worked as expected (Folders were, you know, on top 
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