He's my 10th for all of those reasons. Five Thirty-Eight has an article showing if his Celtics played in a 30 team league, they'd have something in the realm of 5 or 6 rings.
Nothing to sneeze at at all, that's Showtime, Bulls, Spurs air but when you got all the other guys on the list being two-way anchors or at least #1 offensive options with defensive expectations, in larger leagues, I can't leapfrog you over them.
But at the same time I can nod my head if someone places him top 3.
Edit: It's actually 3 or 4 rings when adjusted.