The size of the saddle is more important than the brand. I found a link for getting the correct size. I also found that a $29 E3 saddle was more comfortable thatn the more expensive saddle that came on my Specialized Roubaix. The stock saddle was 143 mm and my E3 is 130 mm.

http://specialized.custhelp.com/cgi-...907262&p_olh=0