[Shindra]

Now I don't know about Anthony Robbins, but as far as I understand it, both love and fear can be motivated 'away from' or 'towards'. Someone leaning towards service could be motivated by moving away from feelings of sorrow and horror when they see things wrong in the world. Feeling bad for how others have it can lead to a state of determination to change it. Think of commercials for charities showing starving children.
It should be noted that there are psychological studies, newer ones, I've heard, that say people are actually better motivated by pleasure/positive visions. (sorry I don't have any links, but you might google it.) Some people say one thing, some say the other.
What I've found is that there's a better motivator than away/towards. It's expression. This is also congruent with LoA - what you are inside manifests outside. Living your life as an expression of your love for the world, or your sense of self-importance.
Love and fear are equally easy and leads to results equally quickly, it only depends on your skill in using the energies. You can have a talent for one or the other, but one is not inherently better than the other.

The path of fear isn't about being afraid all the time. One of the emotions of fear-polarization is lust, for example, and lust is not about avoiding pain, it's about getting pleasure.