As the resident Star Wars guy, I just wanted to weigh in on this.
1.) People who prefer the OT over the PT almost always do it for nostalgia or for the sake of the OT catapulting SFX into the future.
2.) People who prefer the PT over the OT almost always do it for the superior effects and the more "polished" veneer.
3.) Anyone who tries to say that one SW trilogy is better than the other is probably confused; the truth is that both are deeply flawed and both are deeply wonderful. That's my objective opinion, anyway.
4.) Snootch to tha nootch.
Just this one and I'm done off-topicing (just can't help talking about SW).
1,2,3. Agreed, but not 100%. It can be that they just prefer one over the other. Whenever I start watching a SW movie, I end up watching the whole Saga.
Still, I like the Prequels better, although, like you said, I can find the same number of flaws (and magic) in both. Now, I will admit that sometimes I just do it as a reaction to nostalgic OT fans.
But, at the end of the day, when I compare SW to other movies, I like all 6 of them equally. When I compare them with each other, I just like 2 of the Prequels and 1 of the Originals as my top 3, and my least favorite SW film is an Original one (Ep4). It's simple, really.
4.Don't f**ck with the Jedi Master, son (Hamill ruled in that film)!
Aaaaaaand, I'm done.
On topic now, I don't mind anime-style animation, however I haven't seen a "westernised" (is that even a word) anime-style cartoon that I've found successful, so I'm a bit reserved. Still, the most important factor for me will be the story and voice acting (if we get the actors from the movie, the better). Good animation will be a very good bonus, but will not make or break this one for me.