ASM at times looks all flair and limited end result. He'll score you a worldy now and then. Barnes outscored him 13 to 1 last year albeit with ~50% more matches. Assists 5-1 in favour of ASM.
In 21/22 they played a similar number of matches (35 to 32 in favour of ASM) and Barnes outscored (6-5) and outassisted (10-5).