What Eisner shared with Walt Disney was a desire (ego) to be 'the best'. Eisner's great difference was that he was more focused on making money, willing to cut corners and hurry projects to make that buck.
Eisner gave us Disney-MGM Studios, Disney's Animal Kingdom, Typhoon Lagoon, Blizzard Beach, Pleasure Island, numerous attractions, Moderate & Value Resorts, and more. Eisner transformed WDW from 2 theme parks into a complete vacation destination.
In 9 years, Iger has given us Toy Story Mania and the New Fantasyland.
Iger took Eisner's willingness to cut corners in order to make a buck and turned it into WDW's mantra.
In many people's opinion, WDW is worse today than it was in 2005, Eisner's last year.
Iger has been CEO for 9 years. Iger has taken an ax to Disney's Parks & Resorts capex budget, with the lowest P&R investments vs. P&R revenue ratio of any Disney CEO.
I don't see anyone rushing to clean up "Eisner's mess" in Orlando.