What's more important to you: your relationship with your husband or your school? It's going to be hard enough both being professional students, but if you add distance... seriously think about the chance that the relationship just could not be maintained and how you would feel about that.
I think there are a lot more factors at play than the relative strengths and weakness of the respective schools with your husband going to Tulane for med school. While Fordham places better, I don't see that difference justifying 3 (And probably) more years of separation. Keep in mind that Fordham places mostly in NYC- so you won't necessarily be able to join your husband after you graduate unless you forgo getting a job. Job prospects out of either are largely going to be a matter of class rank and will largely be centered around the respective regions the schools are located in. Frankly, I'm not sure Columbia is worth going to in your situation unless your husband is willing to forgo Tulane for med school for it.
Tulane is a crap school, fordham is iffy and not worth moving from your spouse for. If you are waitlisted at columbia, don't you have other T20 school options?