Talking about good execution (the movie aspect that is), the 1974 original Texas Chainsaw Massacre is superbly done! Yes I only saw it now, shame on me but hey props nonetheless to Tobe Hooper.
The visual imagery (anyone has a still of that pre-the limey shot of their van riding towards destiny?) is great and the soundtrack with the bells and all wow (has this been sampled somewhere?? it should.) The script is so fucking easy and tedious, who needs a screenwriter anyway when you’re able to pull this? Just love the 70’s for shooting these imaginative films, we need a revival.