I'm going to embark on a wiring adventure in the next week or so and wanted to get opinions/confirmation on my approach.

The house I'm moving into has ungrounded outlets on the 2nd floor and I'm looking to replace/eliminate them and add additional outlets to each of the 3 bedrooms.

I plan to pull wire from the basement to the attic (I realize this will be its own challenge). I think I'll go with two 15amp breakers and wire each one to its own junction box in the attic - 1 for the larger bedroom and the other for the remaining 2.

From that point I'm wondering if it's better to:
1) do one drop into each room, remove the baseboard, cut the dry wall, and wire to each of the other drops around the room that way.
2) do drops to each outlet in a room by drilling through the top plate individually for each receptacle.

I hope that makes sense. Thanks in advance for your suggestions.