Adelaide were warm favourites because Richmond hadn't achieved anything in 35 years and top 2 sides always get that tag. There was a Richmond stigma and people didn't realise the hot streak they were on.Adelaide were the best H&A side in 2017 and went in hot favourites on GF day.
From memory they completely dismantled Geelong in the prelim and prior to the game it was thought Richmond would be overwhelmed by the occasion and the Crows should win by 6 goals plus.
Giants in 2019 put out a poor performance on GF day but the week before they had a gutsy preliminary final win on interstate turf.
I was worried leading into the GF but in hindsight the Giants prelim win must’ve zapped them of their energy and were cooked after a quarter and a half GF day.
If Collingwood made the 2019 Grand Final it’s safe to say the Tigers fans would’ve been a nervous wreck leading into it considering what happened the year before.
Adelaide had two really soft opponents in finals. They were a bog standard 16-6 interstate team who were kings at home and bunnies away when it counted. Their record in the years before and after showed that. The same for Geelong those years.
Collingwood by virtue of being a competent Melbourne team were the toughest challenger. Hawthorn despite their decline, just after that. Then Geelong, then Adelaide, then GWS.
Brisbane and Port were their own story with the embarrassing finals exits they had over the years (non Richmond).