There is no one perfect answer to this question, as there are many different types of bowls available on the market, and each has its own benefits and drawbacks. However, there are a few things to consider when you shop for a hookah bowl that can help you make the best decision for your needs.
The first thing to consider is the material that the hookah bowls are made from. Most bowls are made from either clay or silicone, and each has its own advantages and disadvantages. Clay bowls are porous, which means they can absorb the flavor of shisha tobacco over time. This absorption can be a good or a bad thing, depending on your preferences. Consider it a type of “marinating” flavor into your bowl. Silicone bowls are non-porous, so they do not absorb the flavor of the shisha but they can be easier to clean.
Another thing to consider is the size of the bowl. Some bowls are small enough to be used with a single session of shisha, while others are large enough to be used for multiple sessions. If you're someone who likes to smoke multiple bowls in a single sitting, you'll want to choose a bowl that's large enough to accommodate your needs. Larger bowls are also useful when smoking in groups as the shisha will not be smoked through as quickly.
Finally, you will need to consider the shape of the bowl. There are many different shapes available, and each one has its own advantages and disadvantages. Consider what types of shisha you are smoking, whether blonde leaf or dark leaf. Also take into account how juicy the shisha is that you prefer to smoke. Blonde leaf tobacco can be used in nearly any bowl while dark leaf shisha tends to perform better with a dense back in a phunnel style bowl. Shishas that have a lot of molasses will do much better in a phunnel or vortex style bowl.