@Snowblind, Weirdo — I'm more optimistic about the Unchained Monk receiving ongoing support than it seems either of you are, and I'm also pretty confident that it'll get the tricks it needs to play high-opt games for folks who are looking for that, if nothing else than just as a matter of time. More options means more flexibility means more opportunities for high-optimizing players to run their tricks. But that's just a guess about the future, and I suppose time will tell.
@Wraithstrike — Ughbash is referring to the Falchion Fred I put together in my <Reference: Basic Fighter Builds> thread that I used for comparison here, rather than the "original" Falchion Fred (I don't even know where he first came up, honestly—that was before my time on the boards). I checked the numbers at 2, 5, 8, 11 (evenly spaced across PFS play).
@Tels — It seems to me that a *lot* of people have been saying the Unchained Monk is a weak class. But any way about it, it just doesn't seem right to call it a "side grade" compared to the Core Monk. <Check my numbers upthread!>
The Unchained Monk *might* represent a "side grade" if we're comparing [relatively optimized Core Monk drawing on supplemental material and archetypes] to [basic, Core-only Unchained Monk], but that's not an apples-to-apples comparison and it doesn't license a judgment that *the class itself* is somehow a "side grade" (it's plain, I think, that the Unchained Monk is a clear upgrade in comparison to the Core Monk, just comparing the classes themselves). Now, you *might* be able to get to the "side grade" conclusion if you couple that sort of apples-to-oranges comparison with an expectation like Snowblind's that the Unchained Monk will not receive future support and that this is the best that it will ever get. But that seems unlikely to me, and even if it works out that way I'd still...
I have to agree with Snowblind here. Granted, we don't know for a fact that there won't be any supplementary material supporting the UCMonk but Pathfinder Unchained does seem to have more of a feel akin to things like Words of Power as opposed to APG/ACG/UC/UM and so on. Consider, too, that in stipulating that the UCMonk, among all of the unchained classes, was explicitly denied access to all present archetypes, any new material would either need to add an equal number of new options for all classes or focus more exclusively on UCMonk options. In either case in order for the UCMonk to start "catching up" in terms of the number of additional options that all the other classes can access, the amount of relative focus would now need to be imbalanced in favor of the UCMonk, which seems highly unlikely.
Furthermore, I respectfully disagree with your assertion that would should compare UCMonk as it stands now only to Core, non-expanded options. The fact is the CRBMonk exists now along with numerous archetypes which have managed to address, to one degree or another, the deficiencies of the original CRBMonk. Likewise, all of the other classes exist now, including UCBarbarian, UCRogue and UCSummoner, and all still have the archetypes and optional features available to them which UCMonk currently lacks. Put differently, if I start playing a new character today, and must make the determination of which class to choose, I will be comparing all classes as they are now to UCMonk as it is now, not to UCMonk as it might be in the future.