As for full BAB, well yes for a pvp fight, eating a heart of the beast for 17 rounds of full BAB will do. But I'd hate the server's balance to be based on PVP, when it represents such a tiny portion of our playtime.
The reason Heart of the Beast is considered mostly for PvP is because context matters.
A Heart of the Beast is a minor boost in PvE; it's good for a short fight, lets you kill one big boss and/or a couple of room fulls of mobs, but it's nothing you couldn't replicate through hard work. Dungeons are there to be beaten.
It's a
major boost in PvP because the consequences and effects are sharper and will impact other players directly: a Heart of the Beast can easily utterly turn the tide for a PvP fight. In the hands of a Monk, this is all the more noticeable given his unparallelled strengths as a Flanker/Harrier.
I don't think monks should win every duel, nor should any class really, but to say they're not supposed to fight in this way seems preposterous to me. Yes, monks are very fast, but you can't actually hit and run effectively in NWN unless you have stealth so what are they supposed to do if they don't have stealth (and no, stealth skills, while nice, shouldn't be considered core skills for the class; no sneak attacks or particular advantage for stealth besides fast walk speed, nor is every monk flavored to be some kind of ninja )? Yes, they could run and gun instead but this is hardly what a traditional monk is designed to do.
As someone who's actually tried to catch high level Monks in PvP, I couldn't disagree more.
Yes, hit and run tactics are effective. In fact that's what Monks are built to do: more than any class, they have the ability to retreat from a bad fight, heal, rebuff, and come back for more. No class is as good at survival as the Monk.
Yes, stealth matters. Most frontline classes make poor detectors, and Monks will have the easiest time of any class to use corner-stealthing. Even if you can't do that, they also have access to Shrouded Dance here, so you're almost certain to get at least one stealth attempt off.
And while not all monks will have the ranged fire power of the gun monk, nonetheless they exist.
So I think the truly preposterous suggestion is that a class that can outrun, out-sneak, and situationally outshoot most frontliner classes, should also reliably be able to go toe-to-toe against them in melee as well. I mean, in what circumstances should a Monk actually be at a disadvantage?!
Because if he can outrun and outfight anybody -- at least with on par builds and buffs -- then the Monk has no real weaknesses. At least no weaknesses other than "getting ganked while unbuffed", which is not an unique weakness. Are we supposed to take Iridni's flippant suggestion that the only way to kill a monk is to hope he crashes at face value?