Is one IPL machine better than the other? (Photo)

IPL is short for Intense Pulsed Light.  There are many different brand name IPL machines made by different companies. In the right hands, they can all produce the same results. Stepping back a bit you should not typically look for a particular machine for treatment. It is best to go to an experienced Dermatologist that has access to multiple devices. You can then discuss your treatment goals, downtime, etc and select the best device for you.

Thanks for your question and posting a picture.  Every doctor will have their favorite laser and / or device.  The most important consideration is experience with your skin type and condition.  The same laser/device in 2 offices will fire differently depending on maintenance, calibration and how well they clean the lens.  Based on your picture and skin type, I'm not sure we would recommend an IPL treatment.  We would probably suggest a safer PicoSure FOCUS laser treatment instead.
Research doctors in your area with the best reviews and multiple treatment options.  If they only have one tool, they try to use it on everyone.  Anyone offering Groupon is probably not going to be in business long term.  One half of the discount Groupon price typically goes to Groupon.  The provider has to try to cover their costs with what is left.  In our experience, anyone offering Groupon is usually just starting with no experience or about to go out of business.  You often get what you pay for... Best of luck.