Of the semi-random list of futures contracts below, you will see that with regards to bang for your buck for daily price moves, CL is currently offering a dollar daily range of $1,700/contract.
Daily Dollar Range = (Point Value/Contract * Average Daily Range of the Instrument)
CL's overall daily dollar range change from a month ago is essentially flat (+0.59%).

ES's daily dollar volume range has dropped by more than half over the last 30 days (-52.35%).   Yuck.

Looking at these number, my own trading for the coming week will have me focusing more on CL and GC, over ES.

Note GC's daily dollar range over the last month is up by almost 1/3 (32.35%).   Nice!