Instead of make, this question is model (style, shape and gate type).
The most common shapes are oval, modified D and pear. I prefer modified D as the wide end fits the bridge webbing better and the narrow end fits the connecting device. However, the oval is required for a Kong Duck and have one of those as well.
For style, I'm referring to a full round shape versus the more "I-beam" shape of the carabiner metal. The I-beam style is generally lighter and what I normally use. However, the full round takes up more room in a mechanical ascender and can sometimes be used to permit a narrower, out-of-spec rope to be used with the device.
For gates (and I'm referring to a locking gate), there are screw type, 1/4 turn self locking and other types of self-locking mechanisms. I hate self locking gates and only use screw gates. This allows easier usage in odd angles, forces me to verify the gate is locked and the way I was trained. I must be getting old because self locking gates were strictly verboten when I went through training...a long time ago.
Finally, I have more carabiners than I need. This is an old habit but having extras or a carabiner for each item needing one allows for redundancy should one be dropped. My small, modified D, I-beam style screw gate carabiners are also identical. That way, they all look and feel the same so that is one less thing I have to think about.