I use both daily and wouldn't describe either as being across the board better. For any one feature, you can find something else which the other one does better and each release tends to round out weak points (e.g. for awhile Firefox's responsive design mode was a big win but Chrome has caught up and added things like network speed simulation, too).

The right way to look at this is to go back to what we used to suffer through and recognize that it's awesome that we have two sharp dev teams putting at lot of effort into making life easier for web developers. Using the “worst” one is still far ahead of the best two years ago.