Disclaimer #1: There may be other 1000+ characters since Blizzard doesn’t offer a complete leaderboard of Paragon points, and we must refer to third party sites that can only list accounts that have been added to their database. But going by that Diablo Progress listing, second place in the S2 exp race is Gabbynator, who is just over 900. Which sounds like a close second, until you consider that the exp to go from 900 to 1000 is equivalent to the exp to go from P1 to P855. Which means #1 Absidien has more than double the exp of the account in 4th place.
Disclaimer #2: We’re talking about softcore, and as is well known, such exp counts only 1/2, or perhaps 1/10th, the *real* exp earned by mortal characters. Thus numerous Hardcore players in the P700+ range are the real MVPs. Or so I like to tell myself.