@InkBlaze02 you need to watch them all as all aspects of the game are important - guns, mechanics, positioning in the fights, rotations, movement, etc.
Also, you mentioned kill/death ratio of 1.0 - it is actually in my opinion a very good stat, high benchmark for gold/plat players, especially in ranked. Think about it - if you have k/d = 1.0 or higher it means that you win at least 50% of your 1v1, including cases where you face 1v2 and 1v3 yet manage to kill at least one enemy even if you go down afterward. And I want to add that given how Apex assigns kills = last player to shoot an enemy before he/she is knocked down, k/d ratio is very vague skill stat as e.g. who is a better player one that does 149 damage yet gets knocked down or one that does 1 damage and knocks down already pretty much dead enemy...e.g. I have reached d4 level now and I play more like a support player - I don't care about stats and KP/RP that much, I like to have a good game and win. Also, I hate killing knocked down players while his/her teammates are still alive and shooting at my team = sometimes I miss out on the kills because of that. And my K/D has not been higher than 0.6.