The updated version of the Fresh ball gag is even better than the original, but I would still recommend a silicone version to anyone. Not just beginners.

I've only tried the Breathable ball gag, but I like it enough to recommend it to just about anyone. It's non-threatening (in my opinion) and a decent product for the price. Just expect to drool. A lot.

I have both the silicone removable ball gag and the breathable ball gag. I hated the breathable ball gag. It was cheap, uncomfortable (almost to the point of being painful to wear for more than 5 minutes at a time), and it looked like it was about to fall apart straight out of the box. Maybe I just had rotten luck.

The breathable ball gag has no give to it (no squish-- it's hard!), so I found it to be particularly uncomfortable. It might just be that my mouth was too small for it to sit properly.

The silicone removable ball gag is nice enough. It's not perfect, but I can wear it comfortably for a long time. I'd recommend that one to anyone.

I say the breathable ballgag, just because it was my first, and I haven't tried the other ones.
I like it because it has air holes, and I have problems breathing through my nose. If you can easily breathe through your nose, then you may want to go with one of the other gags.

Another thing to note with the breathable ball gag is that the little holes tend to gather drool. This gag makes me drool A LOT more than any other gag I've ever used.

I'd recommend either the breather ball gag or the fresh ball gag. Here's my thinking:

If you're going to get a standard gag (solid ball), I recommend getting something with narrow straps coming from the ball itself, as these straps will be nestled in the corners of your mouth. Between the silicone small removable ball gag and the fresh ball gag, fresh wins in this design aspect -- although being able to remove the ball for sterilization is pretty nifty.

The breather gag is a dear, dear friend of mine (and the only one of these particular gags that I've actually tried). No, it's not totally comfortable. Yes, it will make you drool. A lot. But for most of us occasional-gag-wearers , there's a sadistic and wonderful person putting you in the apparatus. Perhaps I love this one most because of my Sir's affection for it!

I got the breathable ball gag as my first and I hated it. As a fellow posted stated above, it has no give to it whatsoever. I didn't like the taste, and it was uncomfortable in my mouth.