I saw both Billy S. and Malik.. .a lot. It's an interesting question, and not a no-brainer one way.
Choz, can't say why Billy didn't get more recognition, but it certainly seemed in those years that we didn't get recognition on a lot of fronts. Contrary to the (understandable) revisionist history that happens among younger Johnnie fans, a top 20 appearance was not common under St. Louie, and we always felt that it was a fight to get any recognition at all.
If you saw him you knew that Billy was one of the best players in college. No question. So was Malik. They were very different and played in different eras and it's difficult to compare. But certainly comparing Billy in his time against Malik in his, Billy doesn't come up short.
Maybe I should say this - Malik was great. Billy was great. i loved watching them both. Maybe one was 'better' than the other... but it'd be real, real close. Both deserve their props.