There are a few different factors that you should consider when deciding if gel powder or tabs are the best option for your dishwasher. One thing to think about is the type of water that you have in your home. If you have hard water, then it might be better to use gel powder because it can help to remove any mineral deposits from your dishes. Another thing to consider is the size of your dishwasher. If you have a smaller dishwasher, then tabs might be the better option because they take up less space. Finally, you should also think about how much money you want to spend on dishwashing detergent. Gel powder and tabs can both be relatively expensive, so it really depends on your budget.