Simple Way to Improve Rangers?
A slightly more interesting approach would be to have different classes of pets LINKED to different types of weapons. When you have a living pet (not a dead one) out of the LINKED variety, you get a damage modifier.
For example, birds could be spotters for longbows. Short bows could work with devourers. Felines could be tied to swords. Bears and Porcines to Greatswords.
Hard to make it perfectly logical but you get the idea.
Again, it is one of those things that could give us a fast damage increase tied to our pet mechanic.