I used many years ACDSee pro but the latest version, Pro 2,5 is so badly programmed that crashed frequently, the waiting time when entering a folder was 10-30 sec but I recorded 2minutes also so...
The answer was FastStone.
Quick, simple and usable. The only thing I miss is the rating system, but in the near future I want to donate some money for the project so I will ask for this feature.
This FastStone is a perfect tool between Irfanview and ACDSee/Bridge. Also recognizes raw, suports image processing (batch, resize, rename, convert, etc.) and some simple editing tools (as a professional you will never use them unless you remove the red eye from your family photos.
I'm really satisfied and I'm happy that I found this wonderful piece of software.
Of course it's not perfect but I expect in the future some upgrades.