Without knowing your specific requirements, it is hard to give you a definitive pick. Of the options on your mind, the BMW X5 and Mercedes-Benz GLE make for the most well-rounded luxury SUVs. They are spacious, well-equipped, comfortable and good to drive. 

The Range Rover Velar is big on style but isn't as roomy as the other SUVs. The Volvo XC90's firm ride and lesser refinement mark it down. 

Though they fall in a similar price range, these SUVs offer very different propositions. The Range Rover Velar is primarily focused on style. It has sleek looks, a low roof and a minimalist interior with high-quality materials. 

However, it is not as practical or spacious as the others. The cabin is smaller, and it only gets five seats. It is also the only one of the three to offer a diesel engine. Overall, it feels better from the driver’s seat than the rear seat.

The Audi Q7 and Volvo XC90 are larger SUVs with 5+2 seating. The third row is best for kids, but it still adds some extra practicality. The Q7 uses a 340hp, 3.0-litre V6 turbo-petrol engine, which offers more effortless power. The XC90 uses a 250hp, 2.0-litre 4-cyl mild-hybrid petrol engine, which is more fuel-efficient. The Volvo also offers more features than the Audi.

All three are excellent SUVs, so the best choice depends on your specific needs and preferences.