#22 - The ring version is nice but with out the points. Can you make a jagged break in the ring look? Maybe try using a serif font or using small caps on one of the words? Want to avoid a corporate look.
#27 - The heart is great. Maybe in shades of red ( a dull, grayed down, faded red). I think the font is too corporate looking again.
#29 - The overall idea is right on, but the font is too corporate and the hand inside the heart doesn’t work.