Knowing which one of these server-side languages results in better job opportunities in Corporate America? If you work at a website as a programmer, Web producer, etc., which one do you use?
ASP.net is the easiest here but PHP is much more widely used i recommend php. (more job opportunities). You need to have at least the knowledge of 2 different languages to get a job HTML does not count.
In terms of employability, either are worthwhile skills. Although ASP.Net commands a slightly higher salary because there are fewer ASP.Net coders than PHP.