Hello.
I have test LOTS of bot for LOL.
I used Legendbot for over 1 year and stop to used it recently because all my accounts were banned ... Yes BoL is not so safe and Injection seems to be detect ...
But it was the best bot I used. Games are running really good and game is minimised so it takes less ressources

.
I buy a licence NHC Bot 4 months ago and I've got lots of problem with it. With the help of nhcoohrh it never works in my VM. Windows handle was not find and player doesn't move ... But BTW, nhcoohrh is friendly and has tryed to help me a lot.
I use Lol-Bandit 1 year ago, not really good, lots of bugs (maybe correct now), so I use legend bot

.
I use Volibot too before Legendbot but seriously, Legendbot was so good because it plays with windows minized in tray ... Less ressources needed.
Now since today, I use summonerfactory. For me actually the best bot. Why ? It uses image compare, make pause to be more human. Can't be detected by riot. The only case they can detect you is the fact that you run like 50 accounts on the same IP ...
I never use DV-Bot.
And if you want to use a bot for Heroes of the storm, I have coded mine and works fine

. Already play something like over 100k games (yes 100.000 !!!). And 0 account ban

(already 1 huge ban wave and no account were banned

)