The Omen remake
Just thought about this one. Don't if it's already mentioned but that movie was terrible.
And guess what? There's another reboot in the works.
One of the things I like about the original and part 2, is that they're old movies.
You can't recreate that kind of atmosphere imo.

Best/worst remakes
 

Best:
Texas Chainsaw Massacre
Halloween
Friday the 13th
Evil Dead
The Thing
Dawn of the Dead
Day of the Dead
I Spit on Your Grave
The Last House on the Left
Wolfman
Amityville

Worst:
A Nightmare on Elm Street
Invasion of the Body Snatchers
The Omen

I know there's more, just can't think of them right now.