I periodically play through them all in order. Each of them has its own charm, strengths and weaknesses, and is a piece of a larger story that includes the novels, comics, and movies. Asking me to choose between old and new is like asking to choose between an entree and dessert... They're good at different things, and they're best when taken together as parts of the complete package.
ps: on the topic of a divided community, I've noticed that it's typically the "old is better" faction that tends to dominate these types of polls, drawing lines in the sand that don't really need to be drawn. In my opinion, the poll needs a third option, "They're all good".