Your standard, all-in selection of abilities here would be Bow Shot, Lovestruck, and Shot Through the Heart. If you're out to kill dragonkin, you really
want that dragonkin dead, especially if you're doing pet battle daily quests. NPC dragonkin have immense damage potential, and that's why the Pandaren Monk has proven so popular: the combination of Focus Chi
and Fury of 1,000 Fists
can eliminate enemy dragonkin in one massive blow. The tactic often means losing your monk early, but if it means minimizing the damage the dragonkin can inflict on your team as a whole, it's a worthy sacrifice. Healing abilities like Love Potion won't necessarily save Peddlefeet, only reduce your own damage capabilities.
Lovestruck or Perfumed Arrow comes down to the preferences of the user. Bow Shot and Shot Through the Heart will be your primary damaging abilities, so it doesn't make sense to take a third damaging ability with a 25% chance to stun over an ability that has a 100% chance to stun. The guaranteed stun might save your hide in a pinch, but the unknown 25% is a crapshoot.
All of that said, however, choosing the ability configuration of Rapid Fire, Perfumed Arrow, and Love Potion might be a valid tactic all on its own. You alternate between Rapid Fire and Perfumed Arrow, using Love Potion on cooldown. You might kill the enemy on the field with a streak of lucky stuns from Perfumed Arrow, but if not, you've likely stayed on the field long enough to put the hurt on your opponent's benched pets, giving you the long-term advantage in the end. If your primary interest is killing dragonkin, however, I'd strongly recommend the first configuration.
Curious what other Love is in the Air tasks you still have time to complete? Check our full Love is in the Air guide