This is the controller most Xbox games are designed around, and the asymmetry matters: every stick position is reachable without lifting the thumb, which is what makes it the comfortable choice for shooters and action games. It has the 3.5mm jack and the share button, works over 2.4GHz wireless with USB-C for charging, and Bluetooth on the current revision lets it pair with a PC or phone directly. It is the one that needs no explanation.
The pad that stays plugged in. Most sessions go through this one, with the Recon Tech taking over for games that need a proper D-pad.
The offset stick layout is the wrong shape for platformers and for anything needing precise directional input, which is exactly what the other controller here is for. Newer revisions moved the share and menu buttons and added a Bluetooth pairing button, so second-hand units vary. It is also the controller most prone to drift on the left stick once the thumbsticks wear.