Everything Vardy accomplished last season was tremendous but my opinion is (<- key word) is that Costa is on a different level than Vardy. I just don't rate Vardy.
Some people favour costa over vardy however I do think that costa is on a lower level than vardy. The problem is with his arrogant attitude on the field, he likes to pick up a fight and started to piss people off, this kind of attitude is suck even when he has a brilliant performance so it is a waste of talent imo