Totti had 13 goals and 7 assists in the scudetto winning year playing as AM and SS at times. Batigol scored 20 and Cafu led the team with 10 assists. Totti had a good year but Batigol was the reason they won that scudetto. That and Juve choking. Aside from this, Totti had many chances to go prove he wasn't just a big fish in a small pond. He didn't have to remain at Roma when they tore apart that 2001 team a couple years later. He chose to remain there and remain as an also-ran for his entire club career. And he won nothing. He wasn't good enough to lead Roma to titles even post-calciopoli. So all-time great? I think not. Big fish in a provincial squad. That's my opinion of him, and his career backs this up.
Del Piero did miss some ridiculous chances in that 2000 final. I'd never deny it. But his CL and Serie A record against better teams are fantastic. Aside from the fact DP was never really the same player after his injury, he still managed to be more impressive than Totti.
It was never meant to be ADP vs Totti, as I rate Ale higher between the two. I consider him (DP) more talented and influential player as well as being model of proffessional. Only disagree with you assessment of Totti, who at the peak of his career was briliant player, as proven by impressive amount of ridiculously good goals and assists, while at times pulling all the strings for them in the middle. He started his career as a midfielder, then gradually moved higher up the pitch. Roma wouldn't have won Scudetto without Totti, just like they wouldn't have won it withouth Batistuta or Cafu, maybe even Montella. I recall Tommasi as well to be important for them. Juve's Scudetto triumphs also would have had an imprint of several players beside Alex. Various Viallis, Zidanes, Trezeguets, Nedveds, Ibrahimović...
Roma post calciopolli was crap, like most of other Italian clubs besides Inter. Would he have had better career at some bigger club, surrounded with better player that would release the pressure off him? Maybe, maybe not, Roma's 2001 team would be as closest to a big club as it gets for him, but you have to feel some kind of respect for him that he decided to stay at his childhood club for his entire career.