Assuming you are thinking of this the way that I would.
It's all a balancing act.
Block by block:
Pro: complete control of building.
Con: Can be hugely time consuming and takes away from the gameplay, especially if/when you include resource gathering
Stamping house:
Pro: not really time consuming
Con: No control over the building.
Wall by wall:
compromise of time and control. Less time consuming than block by block, more than stamping. More control than stamping, less control than block by block.
I don't really know if I have a preference.
I don't really like how time consuming block by block can be, but I do enjoy having the ability to decide what my buildings look like.
It's all a balancing act.
Block by block:
Pro: complete control of building.
Con: Can be hugely time consuming and takes away from the gameplay, especially if/when you include resource gathering
Stamping house:
Pro: not really time consuming
Con: No control over the building.
Wall by wall:
compromise of time and control. Less time consuming than block by block, more than stamping. More control than stamping, less control than block by block.
I don't really know if I have a preference.
I don't really like how time consuming block by block can be, but I do enjoy having the ability to decide what my buildings look like.