For me, Star Wars will ALWAYS be a better saga! There is no comparison, nor will there ever be one. Star Wars has been around a lot longer, and I agree with some of the earlier comments, it is definately historic!
How so many people can say "avatar is better" is beyond me. Of COURSE, it's personal opinion, but, really, are you THINKING, or just rambling here? Firstly, Avatar is only Avatar now. There is no 2-6. Star Wars seriously has that beat, in merchandising, in sequels, in EVERYTHING. Secondly, Avatar is what, 2 years old? You can NOT compare Avatar with a 20+ year old classic! That's insane! Now, I'm not saying Avatar is bad, but seriously, when making comparisons, you can't just compare ONE thing, you have to compare everything about the two. There IS no comparison between Avatar and Star Wars!
avatar? Yes, it was epic. Yes, it had awesome visual effects. Yes, it had awesome world-building. But... The 3d was annoying and not all that great, with the exception of one great scene, when the big bad colonel looks at his HUD mirror and sees the native girl coming at him. That really looked 3d-good. And, for the love of the universe, it was the most expensive movie ticket I have ever paid in my entire life: 28 US dollars. So my vote goes for stars war