FFT3DGPU,
GradFun2DBmod, and removegrain are the only ones i seem to use lately excluding interlacing/resizing/etc... fft3d has sharpening, dehaloing, and some other neat stuff built in. Honestly it's my all purpose filter for the most part. Gradfun is only used for sources with terrible banding like R1's of fate/stay night for example. I use removegrain quite frequently as well but I can't really explain when and how to use it. You should read the .doc for it and experiment.
Make sure you follow the install procedure correctly for fft3dpu (there is a DLL you put in your systems32 folder for it to work) and read up on how to use it well. If you don't have very good video cards then go with
FFT3Dfilter instead which only uses the processor. Assuming you read it and understand how to use it well, you may not have to use many filters in your scripts anymore.
For gradfun2bmod make sure you get the dll's listed or else it won't work.
I don't like giving complete scripts to ppl cause there is no good script that works well for everything. Experimenting is the best way to learn. If you don't want to IVTC and preserve the NTSC frame rate just use a deinterlacer like
Tdeint. I dunno about other ppl, but for some reason I like editing at NTSC. However Tdeint is bad on some sources when it comes to edges, it breaks them horribly. You can fix this easily in combination with EEDI2 from
http://web.missouri.edu/~kes25c/#c4. The basic script for that would be the stuff posted below but again, you should read up and experiment if you can...
interp = separatefields().selecteven().EEDI2(field=1)
deinted = tdeint(edeint=interp,order=1,field=1)
tfm(clip2 = deinted,order=1)
"The people cannot be [...] always, well informed. The part which is wrong will be discontented, in proportion to [...] the facts they misconceive. If they remain quiet under such misconceptions, it is lethargy, the forerunner of death to public liberty. What country can preserve its liberties, if it's rulers are not warned [...] that this people preserve the spirit of resistance? The tree of liberty must be refreshed from time to time, with the blood of patriots and tyrants."-Thomas Jefferson