Even my losses feel really satisfying at the moment.
As much as people are complaining about death timers right now, it makes a clear separation between winning early, mid and late game with various composition types. If a skirmish comp picks off the enemy carry 40 minutes into the game and snowballs that into a 3 for 0 or 4 for 0 or an Ace, then they've played to their composition's strength and won the game with it.
I've had games where my gimmicky 40% CDR Ashe has completely snowballed the mid-game for an easy victory, and I've had games where my team has let the game slip into the 30 and 40 minute marks and we've deservingly lost.
The game is finally in a state where decisions are actually meaningful - right from champion select.
I had a 50 minute 4v5 loss (in the Enemy team's favour) as Jhin AD Carry where I finally felt like I'd genuinely contributed something to my team (as Jhin, not as a player).