The title of this thread is what's caused all the confusion.
The Druid's Wolf Companion counts as a Ranger - Arti Dog counts as a Fighter.
So Druid Wolf gets some of the Ranger enhancements.
If Rangers ever do get their own {Real} Companions it would be nice if they had the same choice as the Druids - Druids do get a lot of other stuff that Rangers don't after all {them having the same pets isn't going to be a problem in my eyes.}.
Oh and Wizards should get Familiars - I'd suggest Ice Mephit for Archmage and Skeleton Knight for PM - Done the same as Arti Dogs/Druid Wolves.