I'm right there with you. I love this line and it's rekindled my interest in its predecessor, Epic Force. While EF can't hold a candle to this stuff, it's still interesting to me.
For Unleashed, I first bypassed Fett and Maul as they looked too odd in the package. I really think this line in particular looks so much better out of the package than in. I have the three most recent releases sitting beside me and they are stunning.
Luke, which I wasn't so sure of when I ordered and still don't like in the package, will likely be in the same category as Maul and Fett (displayed without baby Boba BTW) were. Your excitement about it is encouraging too. The pose is certainly dynamic and I think the anger and power show through in the face sculpt. The pictures on the packaging, as they always do with this line, suck, but the sculpt is pretty good. I'm interested to see how it looks by the first Vader.
Darth Sidious (Palpatine to me) is positively menacing. The facial and hand features are absolutely skeletal which adds so much to it. My daughter will not like this figure at all, which is to say they really have manifested the dark side in the figure. He looks like something out of a horror movie, which really, is what Palpatine is and should be. A magnificent sculpt.
OB-1 is also extremely well done and almost seems like an Ep III version of Ewan McGregor. The figure, to me, appears older, with longer hair and a more 'mature' beard/facial hair. It's dynamic enough but subdued at the same time. OB's not flying through the air simply has one foot raised on the platform and the saber is back for a powerful blow. To me, that represents OB-1 very well. I wasn't so keen on this one either, but again, very well done.
I have the remainder with the exception of the second Vader, which just seemed like too much of a stretch for me. It's nice, and I would have bought it had it been the first release, but was just too similar to justify having it shipped up.
Leia and Padme are both well done, but I'm torn on them. Padme is fine, I can pose her suitably, but geez, nipples? Was it really necessary? I dunno, maybe Geonosis is kinda cold in the afternoon

Similar comments apply to Leia. For such a powerful character to be in that pose?
Hey, look, stripper pole. A rehash of the deluxe Leia with Sail Barge cannon would have allowed the the figure to retain some dignity, be relatively movie accurate (yes, I know they all aren't movie accurate) and still be in that mighty fine outfit (hey, I'm a guy).
The rest are all really nice, with only Boba (young version) being annoying to me. Nice that he was in the movie from an origin standpoint, but otherwise irrelevant. Mace is cool and very representative of his style, IMO. Dooku is great with the interchangeable hand, saber vs lightning. Vader is just plain great, but I find his saber to be a tad too long if not displayed at the front edge of a shelf. Even Anakin is great, so much anger. And again, yes, not movie accurate. Though maybe George is just holding out on us and if we pay $20 a year, we can see that scene

I'm very excited about the next 3, Han's pose being perfect. I think the rumoured last three for 2003 are Luke X-wing (hanging from AT-AT?), clonetrooper (where's my stormtrooper flying backwards after being shot) and Chewie, howling with a bowcaster. Pretty darn cool stuff.