People have all sorts of different preferences when they are looking for partners. This is no different for a Dominant looking for a submissive or vice versa. Personally I have a number of qualities that I'm looking for that range from physical characteristics such as I prefer petite athletic and small framed women, to likes and dislikes, to how willing or open minded someone is to trying new things. One thing that is also very high on the level of appeal chart for me is level of experience, and it's probably not quite exactly what you think.
For me, there isn't anything much more appealing than finding someone who is completely inexperienced and brand new to kink. Someone who is eager and willing to learn and explore and try new things and see what's out there. There are several reasons why I particularly enjoy this sort of situation. The first being that I love exploring new things with people, training someone, discovering boundaries and limits as well as favorites. These are some of my favorite things that you don't always get the opportunity to do with someone who is well experienced and has been in several dynamics before.
Another aspect for me personally is that someone who is brand new to all of this hasn't yet learned or been trained to things that aren't in alignment with my preferences. Some people refer to these as bad habits from previous dynamics, but really they are just residual crossover from someone else's dynamic who's preferences didn't match your own. They can be frustrating at times, and often feel like you have to go through a demolition time period before you can start building things up.
When starting with someone who has very little experience you have the chance to start all of that from scratch without having to worry about what might be there from before. As a Dom you can also fully embrace the role that you should be filling completely. Not just as a dominant but also as a mentor and a coach, helping to mold that person and teach and train and support them. To nurture and protect and care for them as they develop into the amazing and wonderful version of themselves that they are meant to be.
One of my absolute favorite parts about something like this is quite simple though. When you build something like this with someone, when you explore it from the beginning, try all of the new things, and find what works then you have something very special. You have something with that person that they have never had with anyone else. They are something to you that they have never been to anyone else. They do things for you and you alone they have never done for anyone but you. They see you in a way that they have never seen anyone other than you. That is what you're really trying to achieve, and if you do it right it can be amazing beyond what you think is possible.
Everyone has their preferences and I fully encourage them to go after them. Even when you do, sometimes you can be completely and pleasantly surprised by something completely different. You never know where your perfect dynamic or situation or relationship might come from. So go after what you want and take a chance, and if something unexpected comes along take a look at that too because you just never know.