The difference...
...between W and his father are myriad.
HW ran three campaigns for President, losing to Reagan, winning of the Duke and losing to Clinton.
Only three things from him come to the popular mind over three campaigns:
Voodoo economics (tax cuts) lost to Reagan
No new taxes (beat the Duke)
Looking at his watch during the Richmond debate (lost to Bill)
HW came off as distant, aloof and rather dis-interested most of the time on TV.
W on the other hand has a pile of public perception stuff: His rousing speech at the Rupub convention before beating Gore, the debates with Gore (compassionate conservatisim) how he conducted himself during the recount in Florida, tax cuts, verbal flubs galore, images from the ranch (pick up trucks and splitting wood) ground zero with the megaphone, landing on the carrier, 'bring 'em on' etc, etc.
There is an energy constantly eminating from W's Whitehouse. Ideas of going back to space, determination to go alone if necessary in Iraq, MORE tax cuts, fixing Medicaire, obvious affection for the armed forces...on and on.
W comes off as imperfect but genuine and vigorous, that he takes a joy in working hard for what's best for the country. His dad had none of that to go with Gulf War approval.
Notice how the big selling ticket on the left right now is all about hating W. That won't play well against someone people just like.
Clinton offered similar enthusiam and appeal.
Not a single current Democrat offers that charm save perhaps Carol.