I respectfully disagree. T3 wasn't bad but it wouldn't rate in the top 100, and actually doesn't as there already is a 100 Greatest Sci-Fi movies list out there on the net. In fact there are quite a few different lists out there and all I have found were made after T3 was released...none that I have found have it listed, but the first two Terminator movies are there on all the lists.
Every sci-fi poll of any note that I can fine has Blade Runner at #1 and 2001 in second place. I have to agree as IMHO, Blade Runner and 2001: A Space Odyssey are best 2 sci-fi films ever made.
imdb.com/chart/scifi
rottentomatoes.com/features/special/2007/scifi/
ofcs.rottentomatoes.com/pages/pr/top100scifi
home.austarnet.com.au/petersykes/topscifi/lists_film.html
digg.com/movies/100_Best_Reviewed_Sci_Fi_Movies_of_All_Time
bspcn.com/2009/08/06/the-100-greatest-sci-fi-movies/
digitaldreamdoor.nutsie.com/pages/movie-pages/movie_sci-fi.html