I bought both, here's my experience with them:
Autofighter pro:
- Outdated and not flawless, barely runs more than 3 hours.
- There is an outdate coming out on rsbots.net forums, I don't know if it's out yet or when it will be out. It will have a very nice slayer option coming with it, most likely better than the slayer option that Perfecticus has on his bot.
- Take a look around the rsbots.net forums and wait until the update comes out before you buy this, it is not worth it at the moment and I actually refunded it.
Perfecticus fighter:
- Flawless, ran it for over 14 hours one day and 0 problems. Works amazingly.
- Slayer option is crap, doesn't work really good.
- Definitely takes less time to set up. It auto-detects potions and all that.
- I would recommend this fighter over autofighter pro, except when that update comes out for autofighter pro, they will be matched and there is a chance autofighter might have a better working slayer option.
In my opinion, just get perf's fighter, it's flawless and works amazingly. You'll never have any problems with it. Yes, both bots can range and pick up arrows. Hope that answered your questions.