I only distribute my pack privately, however my point was that you could make one a lot better than the released ones with a bit of care.
Take the default vanilla Sphax pack -
http://bdcraft.net/download-bdcraft-texturepacks from here.
Then go to the Sphax forums and get the add on patches from this thread -
http://bdcraft.net/forum/all-sphax-addon-project-textures
From there visit the WIP forum and grab as many WIP (Work In Progress) patches that are not available from the above thread.
Once you have all the zip files, download 7zip and install it (it's a freeby zip program).
Take the first zip file and open it with 7zip and leave it open, then open each downloaded mod texture pack with 7zip also and drag the contents of that into the first zip file. Once you've done that there maybe some adjusting to do, I have preferences on certain textures which I altered (like the thaumcraft angry zombie).
There are also some packs with errors that they still haven't fixed (especially if you are using 64x packs - like Factorization).