By what metrics are a players skill decided?

 Not by Apex,  but by YOU. 

I wonder, with sooo many people who insist on a change/removal of skill based matchmaking, where does the threshold lie for someone to be too good or too bad for your game as either a teammate, or an enemy. 

Obviously a player at level 1 on their first game should never drop into a match with an Apex Predator, but when the gap is narrowed, where does one draw the line?

Is it total kills? Damage dealt? Hours played? Rank? K/D? Accuracy? Survival time? Average play session length? Frequency of play? Account level? Blood alcohol content? What is it?

I ask, partly out of curiosity, and partly to provoke a line of thinking.  If I may give examples.... 

My account level is 194. My K/D for season 3 is .5. I've been playing Apex since season 3 started, and have logged 400 hours in that time. I play daily. For about 2-5 hours a session. I've gotten about 1k kills, won around 50 games,  and am generally at about a .04 BAC when I play. So where do I belong in the SBMM tree? Often I find myself in games with players who display the 20 kill badge, are diamond or pred ranked. I frequently get wiped by sweaty TTV's. I consider myself a "heavy" player, but by no means do I consider myself "good" at the game (yet). 

That being said, I am generally flattered by the matchmaking system in Apex. No, I'm obviously not a pred level player. I would like to be, but that's an S4 goal. Nonetheless something I've done has convinced the system that I belong in lobbies with players much more experienced than I. Personally I suspect it is a combination of account level, and hours played in my case. 

In my case, I play Apex as part of a conscious attempt to "level up" from being a casual gamer, to a competitive one. My stats reflect learning a new game, platform, and style of play than I'm used to. In this respect, I feel as though being matched with the cream of the crop is a benefit, because if one is allowed to plateau in difficulty when honing a skill then how does one expect to truly master said skill?

So I implore of you all. What criteria would your ideal SBMM system evaluate? How would it bracket players? And what metrics matter in your eyes when it comes to sizing up a players capability? 

Happy landings all, see you in the ring.