both captcha are not good but solvemedia is better because within a second you can change dificullty level of captcha
A word to the wise for whoever is using Solvemedia. Don't turn up the captcha to the highest difficulty. The captchas it spits out look like a grabled mess and are nearly unreadable by humans. I would say 1/10 a person can actually get correct.
Im using solvemedia on diff 3 out of 10 and i already need to refresh 3-4 times to be able to read it. But refs went down a lot!
Now i just got to solve the problem that adsense doesnt pay me a shit if no one clicks on my ads xD
Bots dont click ads, or maybe some does accidentally, but those are the worst if you dont want to get banned from adsense.