Got a couple of the Fenders. One slant one straight. I like 'em quite a bit. Old school flavor and the tweeter sounds good. And they're relatively light for a 410. Don't think you can buy them new anymore though. Never played the other two.
A salesman told me back in 2001 that Fender hired some Ampeg guru cabinet designer to help design their 410's and 15 bass cabs. I don't know if it was true or not but I had both and was rather fond of the 15 cabs sound. The 410 was nice but lacked some low end.