gui or 3d model for hud ?

I am making a game and I m confused on making HUD. For my menu I used 3d models and animation but confused on HUD. Should I use unity’s gui system to make HUD or even I can make using 3d model. How can I use 3d model as HUD. If I use model then how can I make stick at the top always? Any tips or link to any tutorial…

Just done something very similar but using DFGUI and went with a background GUI with 3D floating on top. Daikon Forge doesn’t naturally support 3D if you only have Unity free like me (or indie if you prefer that name) but I found the standard OnGUI massively slows framerate. In fact I got better framerates with 3D objects rotating in the “chest” screen than with OnGUI and simple text icon.

Whatever you’re using though this tutorial on using an additional camera for displaying 3D object above a 2D menu will help you.