Graphic designers often consider Photoshop as a standard in the industry. Is it because it is better? I am sure that Adobe users will say yes. Often, whoever will argue their program is better, tends to be very familiar and comfortable with the one they use and will always find the second one less intuitive and less convenient to use. That is normal. If someone works with a particular graphics program for their daily work, they will keep using it outside work, because of their familiarity with it.