NGK plugs are very easy to read and they make a good quality performance plug..
Motorcraft (and autolite) make a very good plug as well. I would not hesitate to use either, but I would personally go with the NGK's if I had more performance mods planned.
Platinum and Iridium primarily give longevity over conventional copper, however the copper plugs transfer more spark energy. Save the platinums for the boring daily driver fuel injected car and run the coppers on the car you'll be wrenching on regularly...its part of the fun