Here are others of my favorites from this year, although I'm sure I'm missing some that are equally deserving. (My 2009 favorites, many of which returned this year, may be found here.)
[NOTE: You can ID all the operas below by clicking on the plots. Clicking on the plotter names takes you to their original tweets.]
Shevinka: A jester has a hunch that someone has his daughter in the sack…. GILDAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAA
(I wonder if the long GILDAAA distracted people from the brilliance of the opening, which could be a perfect tagline for the opera - at least, perfect if the opera were a comedy. Perfectly executed plays on "hunch" and especially "daughter in the sack"; in far less than 140 characters, it actually summarizes the gist of the plot remarkably well. My favorite of 2010.)
(OK, this summarizes very little, but it makes me laugh every time I see or say it. It's especially satisfying because the opera itself is so long. I'm proud to say that I helped midwife this one into the competition; it arose from a discussion among two plotters, one of whom mentioned how much this opera reminds him of reality shows such as "America's Got Talent." The other responded with the line above, and I suggested that's all that was needed.)
nbrockmann: I’m in ur Rhine, stealin ur gold/I can haz love?/Curses: I haz one/Applz=NOM/Want MOAR gold/O hai/Impending doom: ur doin it rite
(I don't even understand parts of this one, but it stands out for sheer kookiness, and it somehow fits Alberich perfectly. Was even converted into a LOLcat.)
pauljz: Her name was Violet, she was a call girl. With camélias in her hair & consumption in the air. At the AH-PRAH! Don’t fall in love!
(Maybe the best of the song parodies. Easy to hear Barry Manilow crooning this.)
pschleuse: What with this hallucination, country life is no vacation. You'll see him if you sort of squint: that creepy guy is Peter Quint
leboyfriend: Grimes is at his exercise when yet another ‘prentice dies. Ellen helps but folks defeat her. Nothing’s left but “Goodbye Peter!”
(Hey, look at that; two rhyming Britten plots about creepy characters named Peter, back to back. Both very elegantly and efficiently done.)
funwithiago: Of all the artist lofts in all the world, that consumptive dame had to light her candle in mine. Well, we’ll always have Paris
(I actually found myself working at one point on something about the coincidence of Mimi stopping by - never got anywhere with it, but this Bogart homage captures it perfectly.)
(Note that the two above are not for the same opera. The "there's more to me than a homicidal clown" line is killer. I may need that for a bumpersticker.)
nbrockmann: Starving latchkey kids thrown out by abusive mom; in woods, they get into witchcraft, cannibalism, murder. Perfect for children!
(nbrockmann has probably turned out more great operaplots than anyone, often featuring clever social commentary; too bad she didn't have enough characters to add "decadent Wagnerian chromaticism" to that grim list.)
frindley: You know it’s getting too meta when onstage chamber music takes over the overture & we launch into a conversation piece about Art
(I like the bonus meta-layer provided here by using this operaplot to comment on the self-awareness of the plot.)
pattyoboe: I love her, she loves me not. What’s he have that I ain’t got? Mmmmm, elixir hits the spot! (I even rhymed with #operaplot !)
(Of course, I like the rhyming ones, of which there were many entered, but meter too often ends up suffering. This one flows along perfectly and integrates the required hashtag most cleverly.)
musicvstheater: Ego Rex,yo! With my mad flow. Tiresias be hatin on my bling tho. Cuz I’m the king, aint no other. Is my ho fly? Word to my mother!
(It's likely I wouldn't have had the skillz to imagine how this should sound on my own, but fortunately its author supplied the breakout hit of Operaplot 2010: Listen here.)
Finally, I'd like to second Yvonne Frindle's suggestion that this one, which originally debuted in 2009, is probably the best #operaplot ever:
primalamusica: Amatory lepidopterist traps fragile specimen among Nagasaki cherry blossoms. Fumbling to release her, he crushes her instead.
(It manages to do so many things. It reads first a bit like a scientific abstract, which turns out to be a lovely way of capturing the culture clash at the center of this story; it's clever and humorous; but, best of all, unlike just about any of the other operaplots I've seen, it genuinely captures the poignancy of the story. It's pretty easy to make fun of opera in all its silliness and excess, but this one actually reminds us that we care about the characters. It's actually sad.)
Remember, you can view all of my operaplots (from 2009 and 2010) here. I like some of them as well...
[UPDATE (5/9] I meant to include this one as well. It was on my list, but I forgot I to list it here:]