personally, this is my take:
Hulk Hogan - no one like him ever, had great mic skills, great charism, good enough in the ring.
The Rock - excellent on the mic, great in the ring, career cut way too short to really tell if he would do for wrestling what hogan did in the 80's.
Micheals - good on mic, great in the ring.
Personally, in terms of sheer talent on the mic and in the ring, even though they always gave him goofy story lines, I still think that Kurt Angle at his peak (2001/2ish) was probaby the greatest overall ever.