Dude, totally respect a different point of view but please trust me when I say that if you're trying to seriously tank a boss Quicken isn't optional - not having it is suicide. You WILL fail concentration checks due to the damage you're taking.
See the above bit about Quicken. You're going to be failing concentration checks right and left and ruining your very limited supply of collectible-turn-in harm scrolls ... and then die because you can't self heal. If you want to reliably self heal while tanking that means Quicken and a spell, not a slow scroll that is easily interrupted.Although I question this "You're not going to be boss tanking trying to UMD a harm scroll to self heal either." why not??
The stances give you options for the 90% of the game you're not boss tanking ... like tossing on staff and dropping to Water stance for +2 Reflex, Fort and +3 to Will ... or Fire to hit a lever ... or Earth for 20 more HP ...Monk doesn't give stance possibilities as Shields negate that
... and if I'm tanking then the extra 4 HP from monk vs rogue and 5 from stance is absolutely something I look at.and the animal path is only +5 HP.
It's two more feats, 9 more HP, 3 more Fort and Will saves from Monk vs more UMD (which you can't use while tanking) and Intimidate (which even with the extra points isn't going to have you hitting the big targets). If those two feats are both Toughness, that's what ... 53 more HP total? AC has absolutely nothing to do with it. For a tank ... and not a dancy avoid-hits sniper type ... I think that's far far more useful.So really (unless you can get Dex/Wis high enough for top tier AC without compromising Int/Con) its an extra toughness or two (as the other monk feats are nigh useless) versus Maxed UMD & Intimidate (11 vs. 23)
True that ;-) ... but I've tried to explain in more detail why I feel the way I do.So again its mostly personal preference.