Tessa Piccallo. I like her style. To me, she seems to do amazing technical stuff while making it look smooth and simple. I also like her trick tutorials.
Youtuber mobien666 has some amazing videos as well and I really like his style too.
Zammy ! I mean come on! Zammy is awesome. I hope, some day, to learn every one of his 1A tutorial tricks. “Like a Boss” is still one of my favorite tricks of his. I haven’t even begun to try the Mobius style.