Hello all!
Erm,for now: Asimov's Foundation series, first three Dune, (as ever, a sense of nostalgia for 'what you read first' applies here!), Dan Simmons's Hyperion/Endymion (and possibly Ilium/Olympos), Bujold's Vorkosigan series, Vinge's Snow Queen / Tiamat books (and Vernor's Darkness Across the Sky book). Iain M Banks, some CJ Cherryh, Peter Hamilton, Ken McLeod, Robert Read. And I'm sure this list will vary from some of the ones I've mentioned in the older threads!
Just ordered Scott Westerfeld's latest (soon to be released here in the UK, from Orbit, MDP!) as they are being hailed as
'better-than-average Space Opera'.
And just to upset things a little (sorry MDP!) I actually didn't like the later Rama books. And from a big ACC fan, that's a difficult admission to make.
IMO they were too slow, too drawn out and a very different style from the original Rama book, which I loved (but had all the things that people don't like about Arthur C's style!). (I'm big on the 'sense-of-wunda', which is something I like in SF / Space Opera, BUT I think Clarke's done it better elsewhere. *owch*

) Do we count 2001 as Space Opera? (I think I would.)
I also think others have tackled female heroines better.
Thinking further, What works for me in Space Opera (in no particular order): Drama. Characterisation. BIG ideas. Complicated plots, with lots of varied characters, human and non human! A sense of time and place: it has a history, a culture/s and lots of locations, to inspire that sense-of-wunda (again)... so in answer to your original post MDP - all of them!
Hobbit
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