He was sensational. As someone who only started understanding football in the late 1990, the likes of Shevchenko, Thuram and Nedvěd were the ones I really wished we had signed to reinforce the treble winning team. The perfect Fergie forward, all things considered — like a modern day Denis Law; two-footed and could score a multitude of goals (in all sorts of ways), a dynamic and smart player with extraordinary movement, relentless and expended a lot of energy on the pitch, great through the middle channel and could also effectively peel outside as a wing forward (unlike a rigid conventional marksman), and so on. Proven in the finest defensive league of the era, too — against Nesta (when he was at Lazio), Thuram, Cannavaro, Zanetti, Cafú (when he was at Roma), Ferrara, Buffon, Montero, Aldair, Córdoba, Toldo et cetera.
There's a threefold issue with how he is perceived at times...
- A lot of casual football watchers became familiarized with him around the 2003 Champions League final (as he famously converted the decisive penalty during shootouts); and while he was really good in the period of time that followed, you could reasonably argue that Shevchenko's swashbuckling best was already delivered in the late 1990s and at the turn of the millennium, split between Dynamo Kyiv (with whom he terrorized several European heavyweights) and the early goings at Milan.
- In an era where national team football was a major point of reference (compared with now, where the best football is almost exclusively played at club level), him representing a relatively weak team like Ukraine diluted his public standing.
- The meteoric rise of Ricardo Kaká was juxtaposed with the slow and then rapid decline of Andriy Shevchenko (who was upstaged as the top dog), and the move to Chelsea (followed by the ignominious loan back to Milan) proved to be the nail in his coffin as a top performer. For some, that would be the lasting memory of him as a player.
If we had to rank the definitive central-ish forwards of the last 25 years or so at the peak of their powers (excluding Fenômeno as he skews perspectives, and active players who are still quite young), he would be pretty close to the top — alongside or slightly behind Luis Suárez, Karim Benzema, Thierry Henry, Robert Lewandowski, Gabriel Batistuta, David Villa, Samuel Eto'o and a couple others.