• Box Shot 3D v2.9.2: Incredibly simple, but very configurable. My favorite.
• Insofta Cover Commander 2.91 : Great interface. Only, it looks like renderings are of lower quality than in Box Shot 3D. My favorite.
• True BoxShot (True BoxShot Standalone v1.7, or True BoxShot for Photoshop v.1.1.2, or TBS Cover Editor v.1.1.1) : Cover editor is mora an vector-bitmap editing application, then an simply an “box effect applier” – and it’s very impressive. But, I dont need that. And, the other two are solid, but not spectacular.
• Cover Expert 1.6 : Solid one. Not so versatile collection of objects, but has an unique feature in ability to mix more than one object on a single scene.
• Quick 3D Cover : Bad rendering, but interesting selection of objects – included are computer monitors, mobile phones, etc.
• 3D Real Boxshot v4.0: There are two reasons why I did not test it and I did not installed any demo of this application. The first one is really disappointing screen shots on a badly designed website, and the second one is that company does make a lot of software totally unrelated to one another. And, I don’t like companies that do that (excluding Adobe).
• eCover Engineer v5.5 : The screenshots are not spectacular, so I decided not to try it.

And, I will mention others that are really amateur effort:

• Just BoxShots, 3D Box Shot Maker (freeware), 3D ProductBox