Out of those I would get the 1/6hp pump. Those fountain pumps do not have much lift power.
I had a fountain pump I used to pump ice water through my immersion chiller. It was a PITA. I had to have the cooler and the kettle at the same height and even then had to work to get it flowing.
Cant remember the hp off hand but I upgraded to a sump pump (pacific hydrostar from harbor frieght) it was on clearance and I got a great deal. It works great no complaints. I doubt soap will hurt it.
edit: mine is a 1/4 hp 1200 gph 20ft lift.