I prefer World Showcase now with the 2 'new' countries, the updated films, today's entertainment etc. As for Future World...
Future World of old was super awesome for it's time, and leaves me with great memories, but I don't believe that Disney could attract a new generation of fans to Epcot solely with the original attractions, no matter how updated. I don't think that we can simply say that we are 'dumbing' it down for the next generation either. Many things have changed in entertainment during the past nearly 30 years because they have had to. We need change. In some cases that can be updates via refurbs, but in other cases, it means replacment. Most of the changes made to Future World during the 29 years since it opened, are ones that I'm very happy with. Even if I don't personally love some (The Seas with Nemo and Friends), I understand the rationale for doing it.
During the past 4 years, we've taken a number of teenagers to WDW, and talked to them about their likes, dislikes, etc. All love WDW because of the attractions and the intangible 'Disney Magic'. When we've had discussions about Epcot, I think I can sum the general feelings of all the young people we've taken, by quoting something my daughter said. "I love World Showcase, love Spaceship Earth and Living with the Land, but I'm glad Epcot has Soarin', Test Track, Mission Space and The Sum of All Thrills too. I wouldn't want a whole park with just animatronic ride throughs."
That's how I feel today too. Great memories of Horizons, WoM and WoL, but no problem at all with them being gone now. (I know WoL is still there, but not really.) I'd love to always have SSE, Living with the Land, and a 'fixed' UoE, but I very much enjoy the new attractions mentioned in the quote above. (Btw, 'Imagination' can go any time too.
)
I loved E.P.C.O.T. Center circa 1982, in 1982. I love Epcot circa 2011, in 2011. I would NOT love E.P.C.O.T. Center circa 1982, in 2011.