You never hear him considered a top 5 PG in today's NBA let alone among the All time greats. Let's say the Spurs win this year and Parker wins MVP. That would put him at 4 titles, 2 finals MVPs, and one of the best point finishers of all time. Career averages of 17ppg, 6 apg, and right around 50% from the field.
Im im a Spurs fan so I'm probably biased here but behind Magic, Isiah, the big O, and John Stockton I consider Parker #4. Please don't tell me you think Nash, Kidd, or Payton are better.