I want to coordinate my my patio door hardware with the interior door knobs and, if possible, with the cabinet hardware.

I want it to be stainless steel only as all other finishes (we have had so far) have discolored as that door gets a lot of morning sun.

I think all major manufacturers make both types (door and cabinet) of hardware.

Is Fusion (by Schlage, I think) a good line?

What about Hafele? I know they are considered "higher-end" for cabinet hardware but is their hardware equally good when exposed to harsh weather conditions?

Any other?

TIA!