Hi mate yea easy comparison,what year argo do you have ,i have a 2011 10m Argo and 2011 10.5 Chimera,usually i always grab for the Chimera,the Chimera feels lighter and more nimble to fly,the Argo is definately a gruntier kite in the same wind and has more float than the Chimera but the boost is about the same ,i would put the range of the Argo for me as 13-30,and the Chimera 14-35,but on a gusty day the Chimera comes into its own as it depowers way faster than the Argo ,looping the kites is about the same speed wise but the Chimera loops with way less pull so in higher winds is way more comfortable.
For down the line wave riding i would go the Argo but for a combo of wave and freestyle then the Chimera is definately the go,hope that helps.
Also if your riding a 2010 10m argo the 011 is way better quicker, punchier and way smoother in the top end.