I actually really hate boardshorts for the most part. While enjoying the sun and swimming, I never saw the need to be covered up so much. Speedos were more popular for a while, but now the current style covers more flesh than most guys fathers and grandfathers ever wore. It's true that some people look better in one than the other, but that follows with every type of clothing ever made. However, someone is buying them... they're in every men's clothing magazine.
But as far as when I'm ogling... The more minimal amount of fabric of a well fitting speedo is enough to keep my imagination involved. Go Speedos!!