Nobody could ever replace Walt as he is a unique individual who created many wonderful things, innovated the world, and did so much during his time here on Earth.
But all that asside, how does Lasseter compare? Is he walking in Walt's footsteps. He created his own animation studio and now he is working to improve Disney in and outside the parks. The whole time he seems grounded and attatched to the world around him, unlike many high up Disney folks.
So what do you think? Is he the next Walt Disney? Is he the next best thing? Or is he just another good guy that comes along now and then and wont leave a lasting positive impact?