this is a tough one
haku's ice mirror allowed him to move at super high speeds the only reason sasuke was able to give him some burn marks was because of his sharingan and his abbility to time his attacks.
lee on the other hand doesnt have a sharingan and it would be extremly hard for him to even see haku, let alone hit him or avoid his attacks.
but given the fact that lee owns haku without his mirrors, i would say lee would kick his sorry ass b4 he even gets a chance to use his ice mirrors
haku's ice mirror allowed him to move at super high speeds the only reason sasuke was able to give him some burn marks was because of his sharingan and his abbility to time his attacks.
lee on the other hand doesnt have a sharingan and it would be extremly hard for him to even see haku, let alone hit him or avoid his attacks.
but given the fact that lee owns haku without his mirrors, i would say lee would kick his sorry ass b4 he even gets a chance to use his ice mirrors