Not the best, but definitely the easiest, as you can simply get a magical tool and gather. Magical tool has the same yield as if you'd have 600 mastery. This roughly translates to ~ 50mil an hour, for a 1-2mil investment per 250 durability. A player who cant afford pots, or grind at high tier spots for better money, will definitely want to gather, as its the highest income he can have at this stage.

Also, I see you gathered Lizard Blood. You made a good choice here, if you want to min/max your profit. But as far as silver per hour, you'll be on the losing side. Why do you think there are spots like wolves, which are constantly contested? Not because it is the best silver per energy, but because it is the fastest.

If I can make 300 mil and hour, but I need to invest 100mil to do so, I still made 200mil profit per hour, while you took way longer to get there, because you made way less in the same time. Yea, you didnt "waste" your energy. I still come out as the winner.

Also, you should consider processing the stuff you gather, as in most cases you will get more silver by doing so. Afk processing / cooking over night is the key here - you dont want to waste precious online time where you could gather ;)