Use the program that works best with your system. Ease of use is also important. I value support. And I see excellent support with CloneDVD. When the new Sony encryption came out last month, the software was updated within a few days.
I don't put too much faith in those reviews. Video is a very subjective thing. The fact that there are so many "personal favorites" tells you that all modern shrink programs are capable of producing very high quality backups, as long as you keep the compression level to less than 30%.
As you gain more experience, I would steer you to Shrink or Nero Recode. With these programs, you can remove more unwanted materials at the start and end of the film, to further reduce the compression level of the main movie. Recode is also faster than CloneDVD and Shrink using my 600 MHz PIII. I tested each program in a clean W2K SP1 partition to reduce the possibility of software conflict.
I see a lot of BS claims with 1 Click. Haven't tested this product but I doubt that it is any better than CloneDVD, Shrink, Recode, DVD2One, and DVDCopy 3.
If you're short of $, then use the LATEST DVD Decrypter and DVD Shrink to backup your DVD. These programs are FREE. They just take a little longer to go from A to B.