When comparing Insane Bump vs MindTex 2, the Slant community recommends Insane Bump for most people. In the question“What are the best programs for making height maps, normal maps, and/or other maps?” Insane Bump is ranked 7th while MindTex 2 is ranked 12th.
Ranked in these QuestionsQuestion Ranking
Pros
Pro Many tweak controls
You can fine tune the result to achieve the desired look that you need.
Pro Generates more then just a normal map
While this tool can generate normal maps, you can also create maps such as Height, Ambient Occlusion, Specular, and more. You can also input your own maps instead for preview.
Pro 3d View
You can preview your normal map using the built-in 3d viewer and get an idea what you're getting.
Cons
Con You get what you pay for
No tutorials on the website. No intuitive way to export images. The program has to be opened in the same folder as the textures you want to use.
Con Buy Upfront No Trial
As soon as I downloaded this for the first time and opened the file (which by the way was the free trial version) it said my trial was expired. So expect to pay upfront when downloading this app.
Con Expensire
Costs around $20.