One thing I found quite funny was after going through and picking all the options that I actually did on my final full playthrough of all the games and expansions/DLCs I looked at the tapestry from a far just to take it in, and there was one MAJOR distinction between DA:O and DA:2....
In DA:O I saved basically everyone, did all their quests, befriended everyone I could, even managed to romance both Morrigan and Leliana without having to go through the whole jealousy phase (it's all in the timing and quest management lol), and so on. But in DA:2..... my tapestry was filled with skeletons!!!!! lol I did most the good options too, even though my Hawke was humorous and I even sided with the templars, but I saved as many people as I could! Yet turns out I killed almost every single person I had an option to select in the tapestry LOL
The change between games was kind of astounding! XD
Anyway yeah, my DA:O warden was a male dalish elf rogue and I think I'm going to go with the Morrigan romance and followed her through the mirror, seems to be the most interesting to me, and hopefully I'll get to see my warden again in some way, or at least talk about him in depth (since I've heard many rumors about how he might not physically be in DA:I at all, and most the rumors sadly enough seem very plausible...). Then for my DA:2 champion I went with a female warrior Hawke and Bethany joined the wardens cause the wardens are awesome, duh I then romanced Merrill cause she was the only romance option I actually liked, I have serious dislike for every other romance option in the game, was kind of upsetting overall actually
Saved most the characters from Origins and killed most the "baddies" that I could, except Danzig just cause after having Fenris do his glowy blue torture thing I kinda felt bad for the dude... so I let him go! lol Killed Arishok and sided with the Templars, hated Meredith but from the very start of Act 3 I just did not like the idea of helping the mages over throw the templars, cause then what? Kirkwall would be Tevinter? I know that didn't ever happen in any of the possible endings, but that was just my first thought lol 
Obviously there are many different things in my tapestry that I'm sure are more unique, but going through all the little minor differences just seems like overkill for an open discussion beta thread lol