The Strand is built on the 5 last whereas the Warwick is constructed on the newer 201 last. They are very similar in that they are elongated and cater to people with higher arches. The toe box of the 201 is a bit fuller and has a slightly more chiseled toe than the 5. Fitwise, I have found them to be rather similar.
I wear the same size on the 65 and 201 as well.