Here's why:
1) Both have a showmance with a strong guy (Clay/Jeff)
2) Both are bubbly blondes who can win competitions
3) Both work with another strong man (Austin/Russell)
However:
1) Jordan was nominated twice going into week 4; Shelli was never nominated yet.
2) Jordan is strategically weaker than Shelli; Shelli can think for herself
3) Jordan is not liked on this website; Shelli is generally liked.