On his day, Kouta was the best footballer I've ever seen....but he wouldn't be on my list of the best 5 Carlton players in the last 30 years.
For consistently delivering high standards over extended periods and match-winning performances in big games, I would have Sticks, Diesel, Judd, Johnno, SOS and Braddles ahead of him. Maybe Ratten & Madden too.
Kouta's form in 2000 from Rounds 6 to 19 was out of this world. If he'd stayed injury free after that, I think he would have won a Brownlow medal.....maybe even a Norm Smith medal
Aside from that period, his career was very good (with some other stand-out games - eg. '99 PF, '95 GF, '96 vs WCE) but inconsistency and injury dogged him.