Those things coming out of the text are made in c4d, try adding some shapes with extrudes, then play around with shatter/explosion type filters.
As for the rest of these types of tags, it's all about the lighting and glows - it's fairly simple to make some 3d text on c4d. But adding strong light/glow to it, as well as effects and textures in photoshop is where the skill really comes in. The second looks like Kinaesthic's work, and you can tell from the crisp text and bright lighting (although I don't like how it's over contrasted on the edges, that's something you should be careful of when using glow and light effects)