Caesar in Portland...
I think that Ken's Place (which is closing very soon) on SE Hawthorne makes a great garlicky Caesar. One of the very best I have had in town. Don't know if he will continue to offer it at Kenny & Zuke's when it opens.
Coming in (very close) at 2nd and 3rd place for me are Cafe Castagna (my partner and I love sharing one and then we each have a burger there...mmmm!) and Basta's.
As often as I have been to Carlyle (which I love) I have never had their Caesar.