LOve them all except Tech/Extreme Prog Metal and just a mild fan of some Progressive Metal. Top five I picked Canterbury Scene: Caravan, Gong, Soft Machine,Gigamesh, Hatfield & The North, National Health Jazz Rock/Fusion: Miles Davis, Mahavishnu Orchestra, Brand X, Weather Report, John McLaughlin, Shakti, Passport Psychedelic/Space Rock: Pink Floyd, Eloy, Hawkwind, Steve Hillage, Ozric Tentacles, Hydria Spacefolk, Spaced Out Symphonic Prog: Yes, Genesis, ELP, Camel, The Flower Kings, Spock's Beard Eclectic Prog: King Crimson, Van Der Graaf Generator, Gentle Giant, Beardfish after that its Prog Folk: Jethro Tull, Strawbs, The Decemberists Progressive Electronic: Tangerine Dream, Kraftwerk, Brian Eno Post Rock/Math Rock: Godspeed You!Black Emperor, Mogwai, Sigur Ros Rock in Opposition: Henry Cow, Univers Zero Rock Progressivo Italiano: Premiata Forneria Marconi, Banco Del Mutuo Soccorso, Le Orme, Area Zeuhl: Magma, Koenjihyakkei Crossover Prog: The Moody Blues, Supertramp, Alan Parsons Project, Phideaux Heavy Prog: Porcupine Tree, The Mars Volta Krautrock: Can, Amon Duul II, Faust Neo-Prog: Marillion, IQ, Arena, Pendragon, Magenta Experimental/Post Metal: Tool, Kayo Dot, Maudlin On The Wall Progressive Metal: Ayreon, Riverside I could write a book on why I like one over the other but in the end almost all of it is amazing. While you could argue a bit about categories I think these are laid out better than most things I've read on the subject. If you don't know the basics of these genres and sub genres you may want to check out a few of those bands to see if that sub genre interests you. In regards to Miles Davis its not his whole catalog but only his late 60's and some of his 70's that I would consider in the prog realm. His 50's and early 60's is straight jazz. When I think of Fusion bands its Brand X, all the John McLaughlin bands, Weather Report etc. Some of the new bands post 90's are a bit harder to define because they have mixed a few sub-genres together or have changed over time. Porcupine Tree is a good example of that. Early stuff could fit post rock, symponic or space rock. Later on they took a harder edge. In my eyes Mars Volva doesn't really fix into any of the genres although they are prog.