Irish Texan,

I have not personally done any of the mentioned tours. Since I have not, it is impossible for me to critique or compare them. I suggest you contact each one and ask about the guides, their experience, the various walks, their credentials, what you will see, size of the group, etc. Sometimes you can get a flavor of their style by some email exchanges.

You can also ask the hosts at your accommodations who they would recommend.

Michele