Beginner Doctor Who fan here.
When I was a kid I watched a couple episodes of the fourth doctor and didn't really get into it. Now, my 11yo daughter has become a big Dr. Who fan and I'm joining her. I've seen a couple of the ninth doctor, but didn't really get hooked until the eleventh doctor (skipping lots of episodes). I'm not in a position to really compare doctors, it's more that I just saw enough episodes to get into the characters and story arc.
I think my daughter's favorite doctor is the 9th, but her favorite companion is Amy. Amy is awesome, though my daughter obviously can't fully appreciate that.
Anyway, mostly hi, but I do have one question. I'm getting to a point in the story where a lot of things might be getting explained. Is there really anything important from earlier seasons/doctors that carries over into the story with the 11th doctor?