As long as you're okay with the wear and tear on the guilloche as a bracelet, I'd go for the guilloche over the small love.
While I'm generally more of a Cartier girl than VCA, the guilloche line is one of the few that I would strongly consider. Just because I love how the engravings/etchings make the gold so beautiful and reflective.
Also, I feel guilloche is a little more unique and less commonplace than the small love (or the Cartier love line in general).
On the other hand, looking at your stack, I do prefer the look with the small love more than with the guilloche. I feel it adds more dimension and variety to your stack. It compliments your stack nicely.