Choosing a limited best seems almost meaningless when even simply the seven operatic experiences I've relished in the run-up to Christmas (nothing seasonal) deserve a place in the sun. But in a year which has seen Arts Council devastation versus brilliant business as usual where possible, English National Opera – faced with “Manchester or die” – needs the first shout-out for doing everything the moneygivers want it to.

Parliament may be topsy-turvy, with a motley bunch of Lords the only hope in vetoing outrageous bills, but up the road at the London Coliseum a more disciplined company is steering a luxury liner with perfect craft. Cal McCrystal’s best G&S so far, where fairies meet peers with, as the cliché has it, hilarious results, was a winner first time round, with gorgeous designs by Paul Brown taking fairyland, Arcadia and Westminster seriously. 

Britten’s biggest cornucopia of invention seems unsinkable, and no-one seeing his breakthrough 1945 opera for the first time in this revival will fail to register its forceful genius. David Alden’s expressionist nightmare of a production, though, has never seemed to me to hit the heart of the matter. And though musical values are strong, ENO music director Martyn Brabbins doesn’t always keep the tension flowing.

Two recent operas by women have opened in London’s two main houses within a week. Both have superbly crafted librettos dealing with gun violence without a shot being fired, giddyingly fine production values and true ensembles guided by perfect conducting. The main difference is that while Kaija Saariaho’s Innocence feels to me ice-cold musically, and not always coherent with dramatic or vocal possibilities, Jeanine Tesori’s Blue hits us in the guts when it matters most.

Is Korngold a second-rank composer with some first-rate ideas? Most performances of the 23-year-old Viennese prodigy's Die tote Stadt make it seem so. Nearly smothered in glitter and craft, the story can compel – an oblique, promising stance on Georges Rodenbach’s Bruges-la-morte, about an obsessive widower who thinks he sees his dead wife in a vivacious dancer. Does Annilese Miskimmon, ENO's semi-visible Artistic Director, carry it off?

All that glitters, titular treasure included, is dangerous childsplay in Richard Jones’s third UK staging of what Wagner called the “preliminary evening” to the three main operas of The Ring of the Nibelung. It’s nothing like the previous two, for the Royal and Scottish Operas, in some ways disconcertingly minimal and occasionally ugly to look at. Yet everything adds up and unlike the cast for his Valkyrie, this team has the perfect mix of vocal and acting gold.

Looking for a sparkly operatic musical, well sung and played, slick and saturated in a range of mainstream styles that stop short in the year the movie masterpiece It’s a Wonderful Life was released, 1946? Then Jake Heggie’s 2016 confection may be for you. One thing’s for sure, though: it may be trying to do something different from the Capra classic, and it’s welcome to have the Bailey family as African Americans, but this isn't a patch on the rather more layered film.

I still remember vividly my first encounter with ENO. I was taken, as a nine-year-old boy, on a school trip to see a performance of Peter Grimes. And I was hooked. I pestered my parents to take me back several times to that same production. I can still hear the ringing of the "Storm" Interlude, and see the waves projected outside the door as the characters entered the pub (and I still remember sniggering with my classmates at the line "that’s a bitch of a gale out there").

Sullivan’s Overture to The Yeomen of the Guard isn’t quite the equal of Wagner’s Prelude to Die Meistersinger – what is? – but its brass-rich brilliance and wholesome ceremonials wouldn’t have been possible without that great example. Cue the first of director Jo Davies’s missteps as a 1950s newsreel gives us the “backstory” of alleged spy Colonel Fairfax’s imprisonment: loud broadcast voice over Chris Hopkins’ already speedy account is a big mistake.