People who watched the games between Arsenal and Liverpool should have seen that Arsenal have a better, more organised team than Liverpool. Liverpool are very dependent on energy (when they are at it, they are not easy to beat, though). Factors like Klopp and recent history have prejudiced fans in favour of Liverpool and against Arsenal.
History doesn't play on the pitch, teams do. Still, it remains to be seen whether Arsenal could finish the season strongly. That has been a problem under Arteta and previous managers. I think that Arsenal may go top at some point, but could they stay there? I doubt it. Will be interesting.