well petg is all of those you listed. not sure about the pei though. never tried it. petg warps the same or less than pla. i get almost zero warp even when printing something really big and boxy. i could easily print my full 8x10x8 volume with no problem. petg is superior to pla in every way BUT as richard said pla is more forgiving. its very easy to print with that stuff. petg is not hard by any means but it is a little more difficult to nail down some good settings for. the "good print" window is a little narrower. the other thing that abs is better in though is machinability. abs machines very nice. you can tap holes, sand and cut it. petg is like pla in that regard. tapping holes suck, sanding isnt all that great, etc.