It may be blasphemy but my immediate reaction is this one should placed at the top of the order, even ahead of 4 and 5. Only drawback is the repetitive plot. Other things were done so well though like Rey and Finn story lines that the put the old movies a bit to shame.
I need a lot more time to chew this over, and I've only seen VII once so I could change my mind, but I don't think you're way off base at all.
The main story in this movie is pretty weak. A map to Luke Skywalker, like he's some kind of X-marks-the-spot treasure? Come on. And it's pretty miraculous how these relatives keep running into one another in a very big galaxy.
But I think you're right that the characters are really good. Rey and Finn are solid, and I want to reiterate how much I liked Kylo Ren. All three of these main characters are still in development and have lots of room to grow, as opposed to somebody like Darth Vader or Princess Leia who was set in concrete in the first two movies. I am hugely supportive of the decision to show Kylo developing into a real sith lord (assuming that's where this is going) in tandem to Rey developing into a Jedi. That's good story-telling.
Also, the visuals in this movie were much better than anything in the original. Some of it was the ability to do more with high-quality CGI, so you could have x-wings soaring through forests and the Millennium Falcon bouncing around off the ground while trying to get airborne. Obviously this movie had a ton of CGI, but it looked real and not at all cartoonish like the prequels. The cinematography was also a lot more modern. I loved the brief shot of the tie-fighters against the sunset -- this movie seemed full of stuff like that. Even the forest scenes were like believable North American forests, not a magical fantasy forest like Endor.
I agree with you that this was an extremely well-done movie overall. It's kind of hard to judge it on its own merits since we can't forget the other six.
Edit: To pile on a little, Kylo Ren is what Anakin should have been. He's creepy and messed up and dark in a believable way.