I would love to hear your guys' opinions, reasons, explanations and/or details please? :)

Especially if you picked some live in same but not all. Would love to hear which ones? :)

..I´m Kingdom Hearts trash...XD

i think Cinderella, Pocahontas and Brave is happening in same alternate time/universe as their story would want it to be but with magic. Snow, TLM, Tangled and Aladdin seems like in its own separate universe. PATF and Frozen is more like disneyverse of real world/universe. Not sure of BATB and Mulan. Sleeping beauty also looks like a separate universe, i guess.

What do you think?

Well, based on my magical article factors as well as geographic and contextual clues, I agree first of all that it seems that they're not all in the same universe but some are. Especially since some of them reference others with little things.

I think Sleeping Beauty could be in the same universe as Aladdin's Agrabah, Frozen's Arendelle and Tangled's Corona. All of these places have totally different geography yet similar various magical elements and legitimate awareness. This leads me to believe that they could all share the same universe. In my opinion, these all take place in the same alternate universe to our own with magic because they have fictional (and magical) locations. I also think this group could even all exist in the Disneyverse of magic and Disney. They just all have that feel, like they could be in the same universe as Neverland and Wonderland to me.

Snow White, Cinderella, TLM's Atlantica & Eric's Kingdom & Glowerhaven, BATB, PATF's New Orleans & Maldonia, & Brave all seem to be like they could be in a similar universe as well though at different time periods. They have some magical creatures but speculated awareness rather than confident awareness. In my opinion, these all take place in the same alternate universe to our own with magic because they have fictional locations and many locations are based on real locations except New Orleans which is real.

Pocahontas & Mulan seem to both take place in our universe but with the secret magic revealed, in my opinion. I think this because they are the most realistic like our world and based on real places but the few magic they have is more spiritual, mystical and rare as opposed common, bountiful and acknowledged.

What do you think?

^ I agree as well with you about Pocahontas and Mulan. I can also see where you are coming from with them all taking place in their own universe. What makes me believe the most that they might share universes are references to each other in their films. Tangled has the most, of course but also Princess and the Frog, Aladdin and even Beauty and the Beast have other Disney or DP references. Aladdin would probably be the best example since Genie pulls Sebastian out of his book. I think it's a really open-to-interpretation question so I'm very thankful to yours and everyone's comments about their opinion on the subject. :)

It kind of seems to me now that perhaps most of them could exist in a Disneyverse with the exceptions of Pocahontas and Mulan.