You are not allowed to ask what's best
http://forum.doom9.org/forum-rules.htm
Anyway, another deinterlacer to consider would be Yadif. I think it origins from MPlayer, but has been ported to Avisynth, Avidemux, ffdshow and VirtualDub. Quality is not on par with QTGMC, but still pretty much okay (and it's quite fast!).
Furthermore with VapourSynth there now is an alternative to Avisynth that works cross-platform. Various Avisynth plug-in's have already been ported over...