I'd go for Into the Future. World Adventures feels really shallow. Explorations are cool at first, but then boring. University Life is the same. Your characters sent of to uni are the only ones you can play while the course is ongoing. It gets a little boring and tedious. Normally I go for the ones that enhance every day playability, but Ambitions only adds a few careers tbh. Check them out and see if you like them. If not, Into the Future is the most fun. :)