I used Xcode or the command line flow with (cgdb, the ndk command line tools, and sublime text as the editor). Xcode did ok for editing, syntax highlighting, and compiling but I could never get the debugging working in it. If I could have got the debugging and project setup working Xcode would have been really good, as it was it was a pretty bad experince.
ADT is java and works on all platforms Eclipse works on. Additionally, the NDK (Native Developer Kit) is downloadable for Windows, Linux and Mac. I've personally used Android developer tools with native development on OSX, it works fine.