For once, there's been a trilogy that has managed to consistently pull off new and good ideas, good storylines, great graphics, good jokes, and just keeping the bar high throughout the series. Everything works within the "Ice Age" universe all the way through the trilogy, and the introduction of new characters has helped give rise to whole new possibilities of jokes, plot lines, subplots, and doing what few trilogies have done.
I can, off hand name 3 trilogies that have also managed to be great all the way through, the original Star Wars, Back to the Future and the first 3 Indiana Jones films. And now, Ice Age is probably the first animated trilogy to join these greats in being one of few highly successful series' that have managed to be good, and stay good despite multiple movies.
Well done, Blue Sky Studios, these movies are likely the younger generation's "Toy Story", the movie that'll give them that sense of nostalgia when they're older and grown up.
5/5