Go to Aguilar's site, click on the specific pickup you are interested in, and on that page under "specs" there is a link that gives very specific dimensions. It was dead on for me when I swapped the 5JHCs into my Lakland last year.
I have no basis for comparison in the Nordstrands, but the Aguilar's I installed were more mid scooped, but had great clarity in the top end and a bigger bottom than the stock Laklands. But they still left me lacking something in the low mids. But they sang up high on the neck!