It is really hard to compare which wiping utility is the best or is better than the other. The best approach depends on whether how sensitive is the data (e.g. secret government docs, company trade secrets, personal data, etc). Also, how well you trust the beneficiary of the drive (e.g. friend, relative, charity (unknown). For really really sensitive data, the recommended is to physically destroy the drive.
If you are giving the computer to a trusted friend or relative and you want to include the Windows 8 OS, a simple reset would probably suffice but if to charity maybe a thorough reset is recommended.
If it is just the drive you are giving, you can use HDDerase,DBAN or any hdd erasing utility, to wipe the drive. I can not recommend which one since they differ in their approaches and have their own pros and cons.