Abu Dhabi and Dubai desert safaris offer similar things, such as camel rides, barbecues, entertainment, and sandboarding.
There could be small changes, like the price, the addition of some exciting activities, changes to the menu, etc.
When planning the best desert safari, consider what you want from the trip and what parts are most interesting.
Do your research, and use that information to make a sound choice. Nonetheless, if there is a desert safari in the city you are staying in or visiting, it would be convenient for you to choose it.