comodo vs regseeker

I love your software but I got a question, If i run the comodo reg cleaner all is fine. But then as a backup check I run Regseeker another registry cleaner it seems to find more problems. Are these real problems or are they self generated to get me to use their software which is free also but I seem confused here. Any comments on this?

Depending on which entries it finds, Because some entries are created right after the cleaning because a program may need them…

http://registry-cleaner.comodo.com/comparison.html

CG

if you run regseeker first then our comodo reg cleaner then we will find more stuff too.
There is no definitive guide about what to remove in the registry. Every company have their own ways and we believe ours is the most stable, reliable and comprehensive.

Melih