depends on devices... (Score 5, Informative)

With more users accessing the web from mobile devices, certificate choice matters even more now. Motorola phones, for example, only have a verisign cert on them, so users will get annoying "untrusted site" warnings for sites with Equifax certs. Also, J2ME applications on these phones cannot connect to sites with non-verisign certs. This becomes a bigger problem for mashup java apps that try to access secure apis on multiple services. You end up greatly restricting how your service can be used if you go for a cheap, easy Equifax certificate.