Big Prog Rock/Metal fan here... it's been my favourite genre for over ten years now. I just love long songs, and they way they can just go off on a tangent with some widdly-widdly noodling for 10 minutes before coming back to the main song.
It was quite interesting reading through this thread, and seeing the different tastes people have. I love Fates Warning, but only with Ray Alder on vocals ... I can't stand the early John Arch era. Similarly with Threshold, one of my very favourites but only the Andrew "Mac" McDermott albums, since I don't like Damian Wilson's "whiny" voice. Also mention of early Queensryche does nothing for me, as I'm only a fan of "Operation Mindcrime" and "Empire". I'm not sure if "Operation Mindcrime" counts as Prog Metal or just Heavy Metal, but if it is eligible for this thread, then that would be my Number One favourite album.
I think I probably prefer the highly polished sound of Prog Metal, as I can get the raw energy from other genres in my collection.
Dream Theater is probably where it all started for me, with that awesome debut album that I loved to bits when it first came out. Of course, they became massive from their next album onwards with James LaBrie on vocals, with my favourites being "Images And Words", "Metropolis Part 2: Scenes From A Memory", "Six Degrees Of Inner Turbulence" and "Train Of Thought". However, I am struggling with their two most recent albums since Mike Portnoy left. I'm not sure why, but they just don't seem as interesting anymore. Not so keen on James LaBrie's solo albums, and I did get a bit fed up with the ubiquitous nature of him being hired to sing on too many other projects at one point, so I've just stuck with Dream Theater to hear him.
Anyone interested in similar styled bands to Dream Theater (polished sound and high-pitched vocals) could also check out
Vanden Plas and
Dreamscape.
Vanden Plas - Holes In The Sky
http://www.youtube.com/watch?v=qdy2uk-GqFM
Dreamscape - The End Of Silence
http://www.youtube.com/watch?v=vm8Qampiim4
I absolutely adore the first four
Pain Of Salvation albums, and with main-man Daniel Gildenlow being a bit of an intellectual, anyone who can write an entire concept album about the radioactivity of Lake Karachay in the former Soviet Union following the Chernobyl disaster is cool in my book!! I was gutted when they chose to change direction with the "B.E." album onwards. Those early albums just work as cohesive whole listening experiences, rather than the disjoined nature of their subsequent efforts. Consequently I stopped following them some time ago now.
Pain Of Salvation - One Hour By The Concrete Lake (full album)
http://www.youtube.com/watch?v=9YTPKBU4JCA
When he's not singing with Fates Warning, here's some more Ray Alder in the form of
Redemption, whose first two albums I would recommend the most. I found the production on the third album ("Snowfall On Judgment Day") a bit off-putting as it sounded too "brickwalled" with the vocals not standing out as much in the mix, and was really annoyed with James LaBrie on vocals for one song, as if he was brought in as a Big Name to try and sell more albums.
Redemption - Bleed Me Dry
http://www.youtube.com/watch?v=yGZuQ8oVScg
Considering Prog Metal is often thought of as sterile and clinical, I find a lot of emotion in the voice of the singer of
Sylvan. Here's an example from their current album "Home", but being another of my very top favourites, I would recommend any of their albums although maybe leaning towards their more recent ones ("Presets", "Force Of Gravity" and the "Sceneries" double album) where they have matured and settled into an established style.
Sylvan - Shine
http://www.youtube.com/watch?v=xxuSoJWftg0
On the more technical side of Prog Metal, I really like the early
Zero Hour albums with Erik Rosvold on vocals, and I lost interest after he left as I wasn't keen on the other singers they hired, nor did I think the songwriting was as strong. For anyone unaware, 3/4 of Zero Hour (Rosvold and the Tipton brothers) got together again as
Cynthesis and have so far released a couple of albums. Great stuff once again, although slighly mellower than Zero Hour.
Cynthesis - Release The Deity
http://www.youtube.com/watch?v=QFHFWQ1b7WU
Other recommendations with vocalists more in the mid-range rather than the higher-pitched style of the majority of my collection include
Cloudscape and
Riverside.
Cloudscape - Demon Tears
http://www.youtube.com/watch?v=xW-DfLTStSY
Riverside - Second Life Syndrome
http://www.youtube.com/watch?v=QLhLKLLJOnA
I was going to mention
Wolverine, but listening to them just now makes me wonder if they are borderline Prog Rock as the videos I was sampling seemed more like modern-day Anathema. Although someone mentioned Arena earlier in this thread, I'll stick to Prog Metal.
EDIT: Found this website while I browsing some info for this post:
http://noisefull.com/articles/absolute-guide-progressive-metal
This looks like a good starting place for beginners, as I'm probably familiar with 80% (at a guess) of the albums, and would agree with most of the suggestions. Looks like I'll be checking out a few new ones that I'm not aware of...