Jeff,
FWIW, another opinion.

I'd go with the SA WF. I like the SA lines over the Rio's because of the extra slippery coating that helps me shoot line better. Even for short trout distances. I have both.
The Rio is very supple but that wouldn't persuade me to go Rio over the SA's.

I have a friend who uses the DT lines all the time. He cuts them in half and allows for extra backing. In effect he has two lines then...I still don't know why I haven't followed his example!! I hate to admit that publicly...*G*

I don't care about loops because I don't use them except on my warmwater lines.

Whatever your choice, they're all pretty darn good lines.

Jeremy.