I think it's a good idea to invest in actual riding boots, they tend to have more refined cuts and are better made than ordinary fashion-boots. (Cavallos are TDF! )
If you're looking for actual riding boots for horse riding there's Königs, Cavallo, Pikeur and, of course, Hermès among others.
An actual riding boot to use for anything but riding isn't that comfortable. It's not the fact you've just got out the saddle after a few hrs that make you look like you're walking funny it's the boots.