They all have their own gifts honestly, it is so hard to compare. I personally think they are good
Mattie:
TOP TIERR. A lot of people who talk negatively about her are always the one looking for timeline and again I will say timeline is super fluid and what you do to handle the matter can influence your outcome. She overall sugarcoats without indicating the bad or the negative outcome, I wish she was more direct, but needless to say she is good, she did give me a negative read last year about someone who I once was dating and she ended being correct stating that I will meet someone else and better to come. It hurts at that moment but looking back so happy that it did not work out cause then I have someone special looking forward to spend more time with.
Rika: SHE IS SOO SWEET, she comes in very strong that sometimes I am overstimulated when she start asking questions before I even have the chance to talk. She is as well gifted , she throws things at you to connect to your spirit and whatever question you may have for her. I won't rely on her for outcome honestly. None of what she said came true from my reading last year. I tried her again 2 weeks ago and she was pretty accurate as current goes, I would not go to her often , cause relying on her will lead into more confusion.
Uli: The only person that legit confirmed for me that I will be meeting someone new while I was calling about my former POI last year. I personally did not like her the first time I talked with her and blew her off cause her reading felt as if she did not read my former POI correctly, welp a year later and I've moved on and she is the one that if gave me an initial of my current POI and has been positive and reassuring that I am where I need to be. Her reading style is where she can see far off, she has mentioned kids and I do not have any at the moment but she saw it for me, which is what I desire.
Overall they are all truly gifted and each one of them have different style of reading truly. And as much as we rely on other opinions , it's up to you to test them out and see who works for you. 
I have read with some readers who have had such positive and great feedback but have been horrible to read me (ex: QOC18 off Keen). And as well read with some who have rating of 4.6-4.7 all bc of their bad rep to others BUT have been amazing on me. Hope that helps.