need advice

Hello everyone I have some questions about your preferences! 1. What is the best 2x2 speedcube? 2. What is the best 4x4 speedcube? I have a shengshou 4x4 but when I solve the cube, he has lots of blocks! (and I don't like him realllllllly!) 3. What is the best 5x5 speedcube? 4. What is...

I made this clip several days ago. Mainly I'm a CFOPer and I got to be interested in Roux half year ago. I've got over sub20 a month ago and reach an average of sub17. But I then find it confused how to make it faster. Here are some of my questions: 1. Should I begin to practice thinking of the...