I have removed word verification from the comment section. Sometimes I try to type the scrambled words 4 or 5 times. I have read comments and decided to take the chance. Google has filters for the Spam..I will see how it goes...I have never had any comments in Spam. I had to go to the old blogger interface to access word verification.
You can also switch back to the old blogger interface...here's how http://www.ogbongeblog.com/2012/01/how-to-change-back-to-old-blogger.html