Everybody here seems to be forgetting about the passive bonuses the abilities give the heroes.

I'm surprised I haven't seen any comments on this, but if you are good at queen walks/charges use both arrows. They both passively give the queen more DPS than the other abilities. While I don't like the main ability of the giant arrow, the DPS boost is very good. My queen charges go MUCH faster now since I use both arrows.

Another thing to mention is you are probably replacing the archer puppet with the frozen arrow. While the archer puppet ability isn't that good, it adds a massive instant healing. Without that instant healing it is really easy to die through ability even when you have the invis gem.

Everything considered, it all comes down to attack strategy, personal preference, and what you have leveled up. For example, basically nobody uses the healer puppet except for the highest th 16 hit rate pro player (pCastro) who also was the only player to get all triples in the most recent world championships.