tl;dr version: Funimation is streaming FMA: Brotherhood on YouTube as well!
Nearing completion of the direct-from-manga subbed anime adaptation myself (3 episodes), I did feel this review was left severely wanting, but it's fair in that it's an official DVD dubbed review. There are some questions I have left of the presentation of the ability to acquire and judge the anime's merits though.
For one, does the anime reviewer, or is it this site's preference that only the dubbed episodes be watched/reviewed? Are all anime's reviewed required to be those only in their most direct to sale form? Is it insisted thus that only individual seasons/specific packages be reviewed at one time/near point of release? Is the propagation/promotion of streaming content/even legally so (as Funimation allows) discouraged in the reviews? Should all viewers be required to take the investment plunge of even a rental to inquire the source's worth? Okay I'm suggesting a bit much here, but I do agree with many commenters assertion that the comparisons of the two anime even somewhat is unfair, as the bulk of anime has been available for viewing even as the review was written and 13 rehashed episodes is sparse to say the least.
SPOILER Warnings.
Just to address a few things I personally found in comparison of the two anime:
1. The drama may have been a bit overbearing in the first partial adaptation, the moments with Winry and the librarian seem to be somewhat self-satirizing in particular, but they really helped the emotional impact of the story and it gave the story some great cliffhangers, enticing moments. The light humor aspect of the manga adaptation finds too much space in the later episodes and the particular morbid/sobering moments are really crushed by this.
2. I was shocked by the level of violence (praticularly blood) when I first watched FMA, but Brotherhood actually is far more intense and dense in its violent moments. FMA pulls off the gravity of it all much better somehow though (music, tastefully drawn-out scenes helped a lot), particularly in the Edward vs. Greed fight, which also happens to be that series' apex (IMO of course) especially in the vomiting of the soul crystal fragments, the rigor mortis that Greed curls into, and Ed's overwhelming guilt. If you like your anime violent, Brotherhood surely won't let you down though.
3. Both anime contain filler, more obviously in FMA's case, and it causes FMA to reach a few lows that Brotherhood manages to avoid fortunately. FMA also manages to come up a little empty-handed though in the end due to this, as the usurping of the throne seemed somewhat under-covered, Dante was a dissapointing villain in the end, and Rose's role seemed quite convuluted and overpronounced. The Pride (or the Fuhrer as is more accurate when relating source) vs. Mustang fight was great though.
4. Fan-service. Yeah I don't appreciate this aspect of most anime as others do, so I'll understand if this didn't come up as an issue for you. Both had fan-service of the underage Winry which I didn't appreciate much the first time and was repelled by more-so in Brotherhood. True, neither series is filled with it in actual story telling too much, but Brotherhood pushes it a bit too much for my taste in the final opening.
5. Plot-holes. Both had their fair share, Brotherhood's more damaging in lore-logic, FMA's leaving you wanting more, or left a little empty-handed in certain moments. The homunculi are confusing in both version to some extent, but more-so in Brotherhood. In FMA you're left with questions like, "What if the homunculi were never fed the souls?", "Is there really a limit to number of homunculi as the seven sins suggest?", "Are the homunculi redeemable even after consumption of souls?", "Is there something to the connection of the humunculi and their original souls?" and to keep this short, "Why is the Elric's mother named sloth?". You also have to wonder about Dante's motivation with the homunculi... nobler than meets the eye perhaps? Anyways onto Brotherhood's.
Okay, since it's bugging me right now, I'll start with, "Why isn't Wrath (almost) immortal?". When Greed assumes Ling's body he can still recover, so why not Wrath? Also, why didn't he consume the Philosopher's Stone when he was fighting Scar? If he was Pride it would make some sense, but he's not in the true adaptation. Next, why would Pride consume Kimblee for no real benefit, and how would Kimblee interfere somehow afterwards? It can be explained away as "soul strength" perhaps, but why target it then? Another one is how can Kimblee hide the Philosopher's Stone within him without becoming a homunculus? Why the different Stone crystal shapes too (other than liquid)? Why would Pride's benefit be scent from Gluttony rather than the far more powerful and relevant ability to send others into the void with the blast attack? That's what Gluttony's creation was the result of afterall... which leads to the question of how Pride can contain it... ahhhh. Hohenheim is an over-curious character as well... it's said that he communicated and asked for forgiveness of all the souls within him, which somehow allows them to co-operate with him outside of his body. But then shouldn't it be presumed that all the souls could rebel on any user and thus the homunculi would be rendered pretty much totally in-effective (I know, no story then, but to me the better option is the souls lose their character once formed into stones). Okay a quick run-down of a few others here:
Why would 'Father' recreate Greed? With previous memories 'unlockable'?
Why is Mustang so powerful without use of Philosopher's Stones?
Why do the 'god' thing at the end? A twist with no end in solutions or impossible to understand solutions? It also poses questions on main characters atheism...
Zombie mutants possessed by unsouls?
The Shadow power of Pride... doesn't work in direct light, doesn't work in no light...?
Pride-like power in tunnel?
Okay I'm done for now... hopefully I didn't ruin the ending of the series for me by swamping it in criticism.
Now onto the original reason I wanted to use for commenting... >.> . I've noticed some have pointed out that you can watch the series on Hulu. Well along with that (I feel that this was the most sorely missed opportunity in article btw) you can watch it right on YouTube through Funimation's own channel. Here's episode 14 to get you started [http://www.youtube.com/user/FUNimation?feature=chclk#p/c/13/Ajb1TQ40244]
Apologies to anyone who read this comment for sources other than the freebie link.