The wiki article may prove useful : http://warframe.wikia.com ... /wiki/Kubrow
Personally, I think the Carrier makes a much better companion, if you are only worried about collecting look. The Chesa will go out and collect some
loot, but it is a limited amount and is not continuous. However, that being said, as an avid Carrier user, I recently switched to a Kubrow and put in six forma and have actually enjoyed using it. Though I am still lazy, I do not find it too much of an annoyance to pick up the loot I need.
So, in the end, it all depends on how you play and what you are looking for in a companion; both Sentinel and Kubrow have their pros and cons, which you will have to decide between.