H&M Styles Comfort?

I am replacing a leather sofa and I have been reading forum posts and reviewing the catalog. My current favorites have not been mentioned as far as I can tell: Chadwick, Gallagher and Seldon. I was thinking about Antelope in the Olive or Williamsburg Black. Could DR or someone who has sat in any of these comment on comfort? I usually sit sidewards on couches and I am 5' and my husband 5'10". Are there any special issues with these three models and are the cushions attached or semi-attached? How do they compare with the Journey sofa that has been described as made for comfort by some posters?
Thanks for your thoughts.