Never did this myself
Match of the Decade?
Everyone speaks highly of the 2014 UK Championship Final but I can't remember it being that good [should re-watch it at some point]. I could go with this years World Final on standard alone but it was a hiding. If pushed to pick one I'd go for the 2019 Tour Championship Semi-Final between Trump and O'Sullivan. One reason why we should have more events with longer formats.
Season of the Decade?
Think the more recent ones have been better, 2017-18
Performance of the Decade?
I'll go with Ronnie winning the 2013 World Championship after returning from the sabbatical. I was adamant throughout the build-up to that event that Ronnie shouldn't take part because it wasn't fair on him to enter, be out of match-practice, get beat on opening Saturday.
Tournament of the Decade?
A few contenders here, given that it was just a six day long event with 8 players the Tour Championship was great with so many close finishes. Other than that potentially the 2011 UK Championship
World Championship of the Decade?
Quite a few good ones, - I'll go with 2014. Some great performances, and some great matches.
Surprise / Shock of the Decade?
Stuart Bingham winning the 2015 World Championship - because it was so unexpected though richly deserved. Someone I work with asked me to give him two names for each way in that event and I went Robertson and Trump, when he asked for an explanation on the Tuesday after all I could do was admit that with the greatest respect to Bingham and that he was more than a worthy winner, - I could have given potentially 10-15 names before his would have come up.
Break of the Decade?
There is quite a few here, - John Higgins' clearance to safe the 2018 World Final against Williams in Frame 33 is probably the best pressure break of the decade, but I'll go for Neil Robertson's 147 in the UK Championship Final in 2015 - one I got to see live - and you could sense from around 24 that a 147 was a real possibility - not that it stopped any nerves.
Innovation of the decade?
The Coral Tour seemed to be a success last year, lets hope it continues