Choosing a Test Case Management tool is not a simple task. The truth is that there is not one tool that is objectively better. You should choose the tool that fits your own QA process best. So, the key is knowing what features you need, and then finding out which of solutions available matches your requirements.
You can download the more advanced checklist we compiled, and use it when starting your evaluation process. If you narrowed the options down already, and trying to descide between TestLink and SpiraTest, the following comparison reviews the main strengths and weaknesses of both.
If you want better comparison between the tools you are checking, and the features available in other tools, please click below